feat(ui): #15 U5 — web upload import (HTMX) drop→mapare→preview→confirma

Implementare completa U5 din plan-treapta2.md (sectiunea 13):

- _upload.html: drop zone + buton accesibil (a11y: drag nu e la tastatura),
  drag-and-drop JS, mesaj 'NU se trimite nimic pana confirmi',
  selector foi pt multi-sheet xlsx, stari eroare/mesaj
- _mapcoloane.html: formular mapare coloane cu .maprow/.mapcol.grow,
  sugestii fuzzy pre-selectate, etiichete <label> vizibile, sample values,
  format data configurabil
- _preview_import.html: tabel 6 stari, pills rezumat, filtre pe stare,
  .chk per-rand pe needs_review (D11), banner declarant .banner.warn
  direct deasupra input-ului N (D12), bara confirmare sticky,
  text 'dubla cu randul N' pe duplicate_in_file (D10 daltonism),
  link export CSV randuri esuate
- base.html: .s-needs_review (warn), .s-already_sent/.s-duplicate_in_file
  (muted), .drop-zone, .banner.warn, .sticky-bar, .htmx-indicator
- routes.py: rute /_import/upload/mapare-coloane/preview/reset/confirma;
  helper _web_compute_preview refoloseste _resolve_row_for_preview,
  _already_sent_lookup, _signature din import_router (fara a-l edita);
  commit ON CONFLICT DO NOTHING (TOCTOU); log atestare
- tests/test_import_ui.py: 15 teste (dashboard, upload, mapare, preview,
  confirmare N corect/gresit, reset, erori, multi-sheet, a11y D10/D11/D12)

279 teste total, 0 esecuri.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/web/routes.py

@@ -3,21 +3,51 @@
 Schelet cu stari explicite: empty (coada goala), banner alerta blocate,
 worker viu/mort, ultimul login RAR. Editor mapari + browser nomenclator +
 export CSV + stare "RAR indisponibil" = de adaugat (plan.md sect. 4 + design-review).
+
+U5 — Rute web pentru import fisier (upload → mapare coloane → preview → confirma → trimite).
+Consuma endpointurile backend din import_router (helper-e interne) fara a le modifica.
+Toate rutele /_import/* returneaza fragmente HTML targetate pe #import-section prin HTMX.
 """
 
 from __future__ import annotations
 
+import hashlib
+import json
 from datetime import datetime, timezone
 from pathlib import Path
+from typing import Any
 
-from fastapi import APIRouter, Form, Request
+from fastapi import APIRouter, File, Form, Request, UploadFile
 from fastapi.responses import HTMLResponse
 from fastapi.templating import Jinja2Templates
 
 from .. import __version__
+from ..api.v1.import_router import (
+    _already_sent_lookup,
+    _build_idempotency_key,
+    _CANONICAL_SYNONYMS,
+    _fuzzy_suggest_column,
+    _resolve_row_for_preview,
+    _signature,
+)
 from ..config import get_settings
+from ..crypto import decrypt_creds, encrypt_creds
 from ..db import get_connection, read_heartbeat
-from ..mapping import load_nomenclator, pending_unmapped, reresolve_account, save_mapping
+from ..idempotency import build_key, canonicalize_row
+from ..import_parse import FileTooLarge, HeaderError, MultipleSheets, parse_date_value, parse_file
+from ..mapping import (
+    DEFAULT_ACCOUNT_ID,
+    account_or_default,
+    load_mapping_meta,
+    load_nomenclator,
+    pending_unmapped,
+    reresolve_account,
+    resolve_prestatii,
+    save_mapping,
+)
+
+# Campuri canonice cu eticheta umana pentru dropdown mapare coloane (U5)
+_CANONICAL_FIELDS = [(k, v[0]) for k, v in _CANONICAL_SYNONYMS.items()]
 
 router = APIRouter(tags=["web"])
 templates = Jinja2Templates(directory=str(Path(__file__).resolve().parent / "templates"))
@@ -169,3 +199,681 @@ def post_mapare(
         return _render_mapari(request, conn, message=msg)
     finally:
         conn.close()
+
+
+# =========================================================================== #
+# Import UI (U5) — upload → mapare coloane → preview → confirmare             #
+# Consuma helper-e din import_router fara a edita fisierul backend.            #
+# Toate rutele /_import/* returneaza fragmente HTML (target #import-section).  #
+# =========================================================================== #
+
+def _web_compute_preview(
+    conn,
+    import_id: int,
+    account_id: int,
+) -> dict[str, Any] | str:
+    """Calculeaza preview pentru un batch; intoarce date sau str cu mesaj de eroare.
+
+    Reutilizeaza _resolve_row_for_preview, _already_sent_lookup, _signature
+    din import_router. Nu repeta logica de rezolvare — only orchestrare.
+    """
+    acct = account_or_default(account_id)
+
+    batch = conn.execute(
+        "SELECT id, account_id, filename FROM import_batches WHERE id=? AND account_id=?",
+        (import_id, acct),
+    ).fetchone()
+    if not batch:
+        return "Batch de import inexistent sau inaccesibil."
+
+    raw_rows_db = conn.execute(
+        "SELECT row_index, raw_json FROM import_rows WHERE batch_id=? ORDER BY row_index",
+        (import_id,),
+    ).fetchall()
+    if not raw_rows_db:
+        return "Niciun rand in batch."
+
+    # Decripteaza randurile
+    rows: list[dict[str, Any]] = []
+    for r in raw_rows_db:
+        try:
+            row_data = decrypt_creds(r["raw_json"]) or {}
+        except Exception:
+            row_data = {}
+        rows.append(row_data)
+
+    col_names = list(rows[0].keys()) if rows else []
+    sig = _signature(col_names)
+
+    mapping_row = conn.execute(
+        "SELECT json_mapare, format_data FROM column_mappings WHERE account_id=? AND signature_coloane=?",
+        (acct, sig),
+    ).fetchone()
+    if not mapping_row:
+        return "Maparea coloanelor nu a fost configurata. Configureaza mai intai maparea."
+
+    json_mapare: dict[str, str] = json.loads(mapping_row["json_mapare"])
+    format_data: str | None = mapping_row["format_data"]
+
+    # Mapare operatii (o singura incarcare — Eng#5)
+    mapping_meta = load_mapping_meta(conn, acct)
+    mapping = {op: meta["cod_prestatie"] for op, meta in mapping_meta.items()}
+
+    # Detectie coercion flags din valorile stocate (VIN numeric)
+    coercion_flags_map: dict[int, list[str]] = {}
+    for i, row_dict in enumerate(rows):
+        flags: list[str] = []
+        for col_f, camp_c in json_mapare.items():
+            if camp_c == "vin":
+                vin_val = row_dict.get(col_f)
+                if vin_val is not None and str(vin_val).replace(".", "").isdigit():
+                    flags.append(f"VIN numeric ({vin_val}) — verificati seria sasiului")
+        if flags:
+            coercion_flags_map[i] = flags
+
+    # Reconstructie date_col_format din format_data stocat in mapare
+    date_col_format: dict[str, str] = {}
+    if format_data:
+        for col_f, camp_c in json_mapare.items():
+            if camp_c == "data_prestatie":
+                date_col_format[col_f] = format_data
+
+    # Detectie coloane cu formule (rata None ridicata)
+    n_rows = len(rows)
+    formula_columns: list[str] = []
+    if n_rows > 0:
+        none_counts = {col_f: sum(1 for r in rows if r.get(col_f) is None) for col_f in col_names}
+        formula_columns = [col_f for col_f, cnt in none_counts.items() if cnt / n_rows >= 0.6]
+
+    # Rezolvare per rand
+    preview_rows: list[dict[str, Any]] = []
+    keys_for_lookup: list[str] = []
+    key_to_indices: dict[str, list[int]] = {}
+
+    for i, row_dict in enumerate(rows):
+        flags_i = coercion_flags_map.get(i, [])
+        info = _resolve_row_for_preview(
+            raw_row=row_dict,
+            json_mapare=json_mapare,
+            date_col_format=date_col_format,
+            coercion_flags=flags_i,
+            mapping=mapping,
+            mapping_meta=mapping_meta,
+            formula_columns=formula_columns,
+        )
+
+        key: str | None = None
+        if info["resolved_status"] in ("ok", "needs_review", "needs_data"):
+            try:
+                key = _build_idempotency_key(account_id, info["resolved"])
+                keys_for_lookup.append(key)
+                key_to_indices.setdefault(key, []).append(i)
+            except Exception:
+                pass
+
+        preview_rows.append({
+            "row_index": i,
+            "resolved_status": info["resolved_status"],
+            "resolved": info["resolved"],
+            "errors": info["errors"],
+            "flags": info["flags"],
+            "idempotency_key": key,
+        })
+
+    # Already_sent: batch lookup (Eng#5 — fara N+1)
+    unique_keys = list(set(keys_for_lookup))
+    already_sent_map = _already_sent_lookup(conn, account_id, unique_keys)
+
+    # Aplica already_sent si duplicate_in_file
+    for row in preview_rows:
+        k = row.get("idempotency_key")
+        if not k:
+            continue
+        if k in already_sent_map and row["resolved_status"] in ("ok", "needs_review", "needs_data"):
+            row["resolved_status"] = "already_sent"
+            row["already_sent_info"] = already_sent_map[k]
+            continue
+        indices_same_key = key_to_indices.get(k, [])
+        if len(indices_same_key) > 1 and row["resolved_status"] in ("ok", "needs_review", "needs_data"):
+            row["resolved_status"] = "duplicate_in_file"
+            row["duplicate_with"] = [idx for idx in indices_same_key if idx != row["row_index"]]
+
+    # Rezumat stari
+    summary: dict[str, int] = {}
+    for row in preview_rows:
+        s = row["resolved_status"]
+        summary[s] = summary.get(s, 0) + 1
+
+    # Actualizeaza contoare in import_batches
+    conn.execute(
+        "UPDATE import_batches SET ok=?, needs_mapping=?, needs_data=?, needs_review=?, "
+        "already_sent=?, duplicate_in_file=? WHERE id=?",
+        (
+            summary.get("ok", 0),
+            summary.get("needs_mapping", 0),
+            summary.get("needs_data", 0),
+            summary.get("needs_review", 0),
+            summary.get("already_sent", 0),
+            summary.get("duplicate_in_file", 0),
+            import_id,
+        ),
+    )
+
+    # Actualizeaza resolved_status in import_rows
+    conn.execute("BEGIN IMMEDIATE")
+    try:
+        conn.executemany(
+            "UPDATE import_rows SET resolved_status=? WHERE batch_id=? AND row_index=?",
+            [(row["resolved_status"], import_id, row["row_index"]) for row in preview_rows],
+        )
+        conn.execute("COMMIT")
+    except Exception:
+        conn.execute("ROLLBACK")
+
+    return {
+        "rows": preview_rows,
+        "summary": summary,
+        "total": len(preview_rows),
+        "filename": batch["filename"],
+    }
+
+
+@router.post("/_import/upload", response_class=HTMLResponse)
+async def web_upload_import(
+    request: Request,
+    file: UploadFile = File(...),
+    sheet_name: str | None = Form(None),
+) -> HTMLResponse:
+    """Upload fisier xlsx/csv → staging; intoarce fragment HTML.
+
+    Daca maparea de coloane exista deja (signature match): computa preview imediat.
+    Daca nu: intoarce formularul de mapare coloane.
+    Nu editeaza import_router.py — apeleaza parse_file si DB direct.
+    """
+    account_id = DEFAULT_ACCOUNT_ID
+    acct = account_or_default(account_id)
+
+    data = await file.read()
+    filename = file.filename or "fisier"
+
+    # Parsare fisier
+    try:
+        parsed = parse_file(data, filename, sheet_name=sheet_name)
+    except MultipleSheets as ms:
+        return templates.TemplateResponse("_upload.html", {
+            "request": request,
+            "sheets": ms.sheet_names,
+        })
+    except FileTooLarge as e:
+        return templates.TemplateResponse("_upload.html", {
+            "request": request,
+            "error": str(e),
+        })
+    except HeaderError as e:
+        return templates.TemplateResponse("_upload.html", {
+            "request": request,
+            "error": f"Antet neclar: {e}",
+        })
+    except UnicodeDecodeError as e:
+        return templates.TemplateResponse("_upload.html", {
+            "request": request,
+            "error": f"Encoding nesuportat: {e.reason}",
+        })
+    except Exception as e:
+        return templates.TemplateResponse("_upload.html", {
+            "request": request,
+            "error": f"Fisier nerecunoscut (xlsx/csv): {type(e).__name__}",
+        })
+
+    conn = get_connection()
+    try:
+        sig = _signature(parsed.columns)
+
+        # Stagingul in DB (tranzactie explicita — Issue 6)
+        conn.execute("BEGIN IMMEDIATE")
+        try:
+            cur = conn.execute(
+                "INSERT INTO import_batches (account_id, filename, status, total, purge_after) "
+                "VALUES (?, ?, 'staging', ?, datetime('now', '+90 days'))",
+                (acct, filename, len(parsed.rows)),
+            )
+            batch_id = cur.lastrowid
+            conn.executemany(
+                "INSERT INTO import_rows (batch_id, row_index, raw_json, resolved_status, error) "
+                "VALUES (?, ?, ?, 'pending', NULL)",
+                [
+                    (batch_id, i, encrypt_creds(row_dict))
+                    for i, row_dict in enumerate(parsed.rows)
+                ],
+            )
+            conn.execute("COMMIT")
+        except Exception:
+            conn.execute("ROLLBACK")
+            raise
+
+        # Verifica mapare existenta
+        existing = conn.execute(
+            "SELECT json_mapare, format_data FROM column_mappings "
+            "WHERE account_id=? AND signature_coloane=?",
+            (acct, sig),
+        ).fetchone()
+
+        batch_id_int: int = cur.lastrowid or 0  # lastrowid este int dupa INSERT reusit
+
+        if existing:
+            # Mapare retinuta → computa preview imediat
+            result = _web_compute_preview(conn, batch_id_int, account_id)
+            if isinstance(result, str):
+                return templates.TemplateResponse("_upload.html", {
+                    "request": request,
+                    "error": result,
+                })
+            return templates.TemplateResponse("_preview_import.html", {
+                "request": request,
+                "import_id": batch_id_int,
+                "message": "Mapare retinuta aplicata automat.",
+                **result,
+            })
+
+        # Mapare noua — sugestii fuzzy si formular de mapare
+        fuzzy_suggestions: dict[str, list[dict]] = {}
+        for col in parsed.columns:
+            sugg = _fuzzy_suggest_column(col, limit=3)
+            if sugg:
+                fuzzy_suggestions[col] = sugg
+
+        return templates.TemplateResponse("_mapcoloane.html", {
+            "request": request,
+            "import_id": batch_id_int,
+            "filename": filename,
+            "columns": parsed.columns,
+            "sample_rows": parsed.rows[:3],
+            "fuzzy_suggestions": fuzzy_suggestions,
+            "canonical_fields": _CANONICAL_FIELDS,
+            "format_data": None,
+        })
+    finally:
+        conn.close()
+
+
+@router.post("/_import/{import_id}/mapare-coloane", response_class=HTMLResponse)
+async def web_save_mapare_coloane(
+    request: Request,
+    import_id: int,
+) -> HTMLResponse:
+    """Salveaza maparea de coloane si computa preview. Intoarce fragment HTML."""
+    account_id = DEFAULT_ACCOUNT_ID
+    acct = account_or_default(account_id)
+
+    form = await request.form()
+
+    # Colectare perechi coloana fisier → camp canonic din form
+    # form.getlist intoarce List[str | UploadFile]; filtram la str (campuri text)
+    colnames = [str(v) for v in form.getlist("colname") if isinstance(v, str)]
+    canons   = [str(v) for v in form.getlist("canon")   if isinstance(v, str)]
+    format_data_val = str(form.get("format_data") or "").strip() or None
+
+    # Construieste json_mapare (ignora campurile marcate ca "ignorate")
+    json_mapare: dict[str, str] = {}
+    for colname, canon in zip(colnames, canons):
+        if canon:
+            json_mapare[colname] = canon
+
+    if not json_mapare:
+        # Nici un camp mapat → re-arata formularul cu eroare
+        conn = get_connection()
+        try:
+            first_row = conn.execute(
+                "SELECT raw_json FROM import_rows WHERE batch_id=? ORDER BY row_index LIMIT 1",
+                (import_id,),
+            ).fetchone()
+            columns = []
+            if first_row:
+                try:
+                    rd = decrypt_creds(first_row["raw_json"]) or {}
+                    columns = list(rd.keys())
+                except Exception:
+                    pass
+            fuzzy: dict[str, list[dict]] = {}
+            for col in columns:
+                sugg = _fuzzy_suggest_column(col, limit=3)
+                if sugg:
+                    fuzzy[col] = sugg
+            return templates.TemplateResponse("_mapcoloane.html", {
+                "request": request,
+                "import_id": import_id,
+                "columns": columns,
+                "sample_rows": [],
+                "fuzzy_suggestions": fuzzy,
+                "canonical_fields": _CANONICAL_FIELDS,
+                "format_data": format_data_val,
+                "message": "Mapeaza cel putin un camp canonic inainte de a continua.",
+                "error": True,
+            })
+        finally:
+            conn.close()
+
+    conn = get_connection()
+    try:
+        # Verifica ca batch-ul apartine contului
+        batch = conn.execute(
+            "SELECT id FROM import_batches WHERE id=? AND account_id=?",
+            (import_id, acct),
+        ).fetchone()
+        if not batch:
+            return templates.TemplateResponse("_upload.html", {
+                "request": request,
+                "error": "Batch de import inexistent sau expirat.",
+            })
+
+        sig = _signature(list(json_mapare.keys()))
+
+        # Salveaza maparea (upsert)
+        conn.execute(
+            "INSERT INTO column_mappings (account_id, signature_coloane, json_mapare, format_data) "
+            "VALUES (?, ?, ?, ?) "
+            "ON CONFLICT(account_id, signature_coloane) DO UPDATE SET "
+            "json_mapare=excluded.json_mapare, format_data=excluded.format_data",
+            (acct, sig, json.dumps(json_mapare, ensure_ascii=False), format_data_val),
+        )
+
+        # Computa preview
+        result = _web_compute_preview(conn, import_id, account_id)
+        if isinstance(result, str):
+            return templates.TemplateResponse("_upload.html", {
+                "request": request,
+                "error": result,
+            })
+        return templates.TemplateResponse("_preview_import.html", {
+            "request": request,
+            "import_id": import_id,
+            **result,
+        })
+    finally:
+        conn.close()
+
+
+@router.get("/_import/{import_id}/preview", response_class=HTMLResponse)
+def web_preview_import(
+    request: Request,
+    import_id: int,
+) -> HTMLResponse:
+    """Preview 6 stari per rand. Tinta HTMX dupa mapare retinuta sau navigare directa."""
+    account_id = DEFAULT_ACCOUNT_ID
+    conn = get_connection()
+    try:
+        result = _web_compute_preview(conn, import_id, account_id)
+        if isinstance(result, str):
+            return templates.TemplateResponse("_upload.html", {
+                "request": request,
+                "error": result,
+            })
+        return templates.TemplateResponse("_preview_import.html", {
+            "request": request,
+            "import_id": import_id,
+            **result,
+        })
+    finally:
+        conn.close()
+
+
+@router.get("/_import/reset", response_class=HTMLResponse)
+def web_import_reset(request: Request) -> HTMLResponse:
+    """Reseteaza sectiunea de import la starea initiala (drop zone gol)."""
+    return templates.TemplateResponse("_upload.html", {"request": request})
+
+
+@router.post("/_import/{import_id}/confirma", response_class=HTMLResponse)
+async def web_confirma_import(
+    request: Request,
+    import_id: int,
+) -> HTMLResponse:
+    """Gate HARD confirmare + enqueue randuri ok + log atestare. Intoarce fragment HTML.
+
+    Replica logica din import_router.commit_import dar cu input din form HTML
+    si raspuns HTML (nu JSON). INSERT per-rand ON CONFLICT DO NOTHING (TOCTOU).
+    """
+    account_id = DEFAULT_ACCOUNT_ID
+    acct = account_or_default(account_id)
+
+    form = await request.form()
+
+    # Parseaza n_confirmat (form.get intoarce str | UploadFile | None → cast la str)
+    try:
+        n_confirmat = int(str(form.get("n_confirmat") or "0"))
+    except (ValueError, TypeError):
+        n_confirmat = 0
+
+    # Randuri needs_review bifate explicit
+    reviewed_rows: set[int] = set()
+    for v in form.getlist("reviewed_rows"):
+        if isinstance(v, str):
+            try:
+                reviewed_rows.add(int(v))
+            except (ValueError, TypeError):
+                pass
+
+    confirmed_by = str(form.get("confirmed_by") or "").strip() or None
+
+    conn = get_connection()
+    try:
+        batch = conn.execute(
+            "SELECT id, filename, status FROM import_batches WHERE id=? AND account_id=?",
+            (import_id, acct),
+        ).fetchone()
+        if not batch:
+            return templates.TemplateResponse("_upload.html", {
+                "request": request,
+                "error": "Batch de import inexistent sau expirat.",
+            })
+
+        if batch["status"] == "committed":
+            return templates.TemplateResponse("_upload.html", {
+                "request": request,
+                "message": "Acest batch a fost deja comis.",
+            })
+
+        # Incarca randurile cu stare ok si needs_review
+        ok_rows_db = conn.execute(
+            "SELECT row_index, raw_json, resolved_status FROM import_rows "
+            "WHERE batch_id=? AND resolved_status IN ('ok', 'needs_review') ORDER BY row_index",
+            (import_id,),
+        ).fetchall()
+
+        if not ok_rows_db:
+            # Re-arata preview cu eroare
+            result = _web_compute_preview(conn, import_id, account_id)
+            if isinstance(result, str):
+                return templates.TemplateResponse("_upload.html", {"request": request, "error": result})
+            return templates.TemplateResponse("_preview_import.html", {
+                "request": request,
+                "import_id": import_id,
+                "message": "Niciun rand ok de confirmat in acest batch.",
+                "error": True,
+                **result,
+            })
+
+        # Decripteaza si construieste lista de randuri de trimis
+        to_enqueue: list[dict[str, Any]] = []
+        review_indices: set[int] = set()
+
+        for r in ok_rows_db:
+            try:
+                row_data = decrypt_creds(r["raw_json"]) or {}
+            except Exception:
+                continue
+            if r["resolved_status"] == "ok":
+                to_enqueue.append({"row_index": r["row_index"], "data": row_data, "status": "ok"})
+            elif r["resolved_status"] == "needs_review":
+                review_indices.add(r["row_index"])
+
+        # Adauga randurile needs_review bifate explicit
+        for r in ok_rows_db:
+            if r["resolved_status"] == "needs_review" and r["row_index"] in reviewed_rows:
+                try:
+                    row_data = decrypt_creds(r["raw_json"]) or {}
+                    to_enqueue.append({"row_index": r["row_index"], "data": row_data, "status": "needs_review"})
+                except Exception:
+                    pass
+
+        n_total_ok = len(to_enqueue)
+
+        # Gate HARD: n_confirmat trebuie sa fie exact egal cu numarul de randuri de trimis
+        if n_confirmat != n_total_ok:
+            result = _web_compute_preview(conn, import_id, account_id)
+            msg = (
+                f"Numarul confirmat ({n_confirmat}) difera de randurile gata de trimis ({n_total_ok}). "
+                f"Verifica preview-ul si retasteaza numarul corect."
+            )
+            if isinstance(result, str):
+                return templates.TemplateResponse("_upload.html", {"request": request, "error": msg})
+            return templates.TemplateResponse("_preview_import.html", {
+                "request": request,
+                "import_id": import_id,
+                "message": msg,
+                "error": True,
+                **result,
+            })
+
+        if n_total_ok == 0:
+            result = _web_compute_preview(conn, import_id, account_id)
+            if isinstance(result, str):
+                return templates.TemplateResponse("_upload.html", {"request": request, "error": result})
+            return templates.TemplateResponse("_preview_import.html", {
+                "request": request,
+                "import_id": import_id,
+                "message": "Niciun rand ok de confirmat.",
+                "error": True,
+                **result,
+            })
+
+        # Incarca maparea de coloane pentru payload
+        first_row_db = conn.execute(
+            "SELECT raw_json FROM import_rows WHERE batch_id=? ORDER BY row_index LIMIT 1",
+            (import_id,),
+        ).fetchone()
+        col_names: list[str] = []
+        if first_row_db:
+            try:
+                fd = decrypt_creds(first_row_db["raw_json"]) or {}
+                col_names = list(fd.keys())
+            except Exception:
+                pass
+
+        sig = _signature(col_names) if col_names else ""
+        mapping_row = conn.execute(
+            "SELECT json_mapare, format_data FROM column_mappings WHERE account_id=? AND signature_coloane=?",
+            (acct, sig),
+        ).fetchone()
+
+        json_mapare: dict[str, str] = json.loads(mapping_row["json_mapare"]) if mapping_row else {}
+        fmt = mapping_row["format_data"] if mapping_row else None
+
+        # Mapare operatii
+        mapping_meta = load_mapping_meta(conn, acct)
+        mapping_ops = {op: meta["cod_prestatie"] for op, meta in mapping_meta.items()}
+
+        # Enqueue in tranzactie explicita (Issue 6) — INSERT ON CONFLICT DO NOTHING (TOCTOU)
+        enqueued: list[dict] = []
+        toctou: list[int] = []
+        rows_for_hash: list[str] = []
+
+        conn.execute("BEGIN IMMEDIATE")
+        try:
+            for item in to_enqueue:
+                row_dict = item["data"]
+                row_index = item["row_index"]
+
+                # Aplica maparea de coloane
+                mapped: dict[str, Any] = {}
+                for col_f, camp_c in json_mapare.items():
+                    if col_f in row_dict and camp_c:
+                        mapped[camp_c] = row_dict[col_f]
+
+                # Rezolva data
+                for col_f, camp_c in json_mapare.items():
+                    if camp_c == "data_prestatie":
+                        col_fmt = fmt or "ambiguous"
+                        raw_date = mapped.get("data_prestatie")
+                        if raw_date is not None:
+                            iso_date, _ = parse_date_value(raw_date, col_fmt)
+                            if iso_date:
+                                mapped["data_prestatie"] = iso_date
+                        break
+
+                # Operatia → prestatii
+                operatie_val = mapped.pop("operatie", None)
+                if operatie_val and "prestatii" not in mapped:
+                    mapped["prestatii"] = [{"cod_op_service": str(operatie_val), "denumire": str(operatie_val)}]
+
+                # Rezolva prestatii
+                prestatii = mapped.get("prestatii") or []
+                resolved_p, _ = resolve_prestatii(prestatii, mapping_ops)
+                mapped["prestatii"] = resolved_p
+
+                # Canonicalizare
+                canon = canonicalize_row(mapped)
+                mapped.update({
+                    "vin": canon["vin"],
+                    "nr_inmatriculare": canon["nr_inmatriculare"],
+                    "odometru_final": canon["odometru_final"],
+                })
+
+                key = build_key(account_id, canon)
+
+                rows_for_hash.append(json.dumps({
+                    "row_index": row_index,
+                    "vin": mapped.get("vin"),
+                    "data_prestatie": mapped.get("data_prestatie"),
+                    "odometru_final": mapped.get("odometru_final"),
+                    "prestatii": [
+                        str(p.get("cod_prestatie") or p.get("cod_op_service") or "")
+                        for p in resolved_p
+                    ],
+                }, sort_keys=True, ensure_ascii=False))
+
+                cur = conn.execute(
+                    "INSERT OR IGNORE INTO submissions "
+                    "(idempotency_key, account_id, status, payload_json, batch_id, row_index, purge_after) "
+                    "VALUES (?, ?, 'queued', ?, ?, ?, datetime('now', '+90 days'))",
+                    (key, acct, json.dumps(mapped, ensure_ascii=False), import_id, row_index),
+                )
+                if cur.rowcount == 0:
+                    toctou.append(row_index)
+                else:
+                    enqueued.append({"submission_id": cur.lastrowid, "row_index": row_index})
+
+            conn.execute("COMMIT")
+        except Exception:
+            conn.execute("ROLLBACK")
+            raise
+
+        n_enqueued = len(enqueued)
+
+        # Log atestare (Voce#9)
+        rows_hash = hashlib.sha256(
+            json.dumps(sorted(rows_for_hash), ensure_ascii=False).encode("utf-8")
+        ).hexdigest() if rows_for_hash else ""
+
+        conn.execute(
+            "INSERT INTO import_attestations (batch_id, account_id, confirmed_by, rows_hash, n_confirmed) "
+            "VALUES (?, ?, ?, ?, ?)",
+            (import_id, acct, confirmed_by, rows_hash, n_enqueued),
+        )
+        conn.execute(
+            "UPDATE import_batches SET status='committed', ok=? WHERE id=?",
+            (n_enqueued, import_id),
+        )
+
+        # Succes → drop zone cu mesaj de confirmare
+        toctou_msg = f" ({len(toctou)} coliziuni TOCTOU excluse)" if toctou else ""
+        return templates.TemplateResponse("_upload.html", {
+            "request": request,
+            "message": (
+                f"S-au pus in coada {n_enqueued} prezentari{toctou_msg}. "
+                f"Procesarea incepe in cateva secunde — urmareste coada de mai jos."
+            ),
+        })
+
+    finally:
+        conn.close()

app/web/templates/_mapcoloane.html

@@ -0,0 +1,96 @@
+<div id="import-section">
+  <div class="card">
+    <h2 style="font-size:15px; margin:0 0 12px;">
+      Mapare coloane —
+      <span class="muted" style="font-weight:400;">{{ filename or ("import #" ~ import_id) }}</span>
+    </h2>
+
+    {% if message %}
+    <div class="flash" style="{% if error %}border-color:var(--err); background:#241a1a;{% endif %} margin-bottom:12px;"
+         {% if error %}role="alert"{% endif %}>
+      {{ message }}
+    </div>
+    {% endif %}
+
+    <p class="muted" style="margin:0 0 12px; font-size:13px;">
+      Asociaza fiecare coloana din fisier cu campul canonic corespunzator.
+      Maparea se retine automat pentru fisiere cu acelasi antet.
+    </p>
+
+    <form hx-post="/_import/{{ import_id }}/mapare-coloane"
+          hx-target="#import-section"
+          hx-swap="outerHTML">
+
+      <div style="margin-bottom:8px; display:flex; align-items:center; gap:10px; flex-wrap:wrap;">
+        <label for="format-data" style="font-size:13px; color:var(--muted);">
+          Format data
+        </label>
+        <input type="text" id="format-data" name="format_data"
+               value="{{ format_data or 'DD.MM.YYYY' }}"
+               placeholder="ex: DD.MM.YYYY"
+               style="max-width:160px;"
+               aria-describedby="format-data-hint">
+        <span id="format-data-hint" class="muted" style="font-size:12px;">
+          sau YYYY-MM-DD, MM/DD/YYYY etc.
+        </span>
+      </div>
+
+      {% for col in columns %}
+      {%- set sugg = fuzzy_suggestions.get(col, []) -%}
+      {%- set best = sugg[0].camp_canonic if sugg else '' -%}
+      <input type="hidden" name="colname" value="{{ col }}">
+      <div class="maprow">
+        <div class="mapcol grow">
+          <div><strong>{{ col }}</strong></div>
+          {% if sugg %}
+          <div class="muted" style="font-size:12px; margin-top:2px;">
+            sugestie: <span class="sugg">{{ sugg[0].camp_canonic }}
+            ({{ sugg[0].score | round | int }}%)</span>
+          </div>
+          {% endif %}
+          {%- set ns = namespace(samples=[]) -%}
+          {%- for row in sample_rows -%}
+            {%- if row.get(col) is not none and row.get(col) != '' -%}
+              {%- set ns.samples = ns.samples + [row[col] | string] -%}
+            {%- endif -%}
+          {%- endfor -%}
+          {% if ns.samples %}
+          <div class="muted" style="font-size:11px; margin-top:2px;">
+            ex: {{ ns.samples[:2] | join(", ") }}
+          </div>
+          {% endif %}
+        </div>
+        <div class="mapcol" style="min-width:200px;">
+          <label for="canon-{{ loop.index }}"
+                 style="display:block; font-size:12px; color:var(--muted); margin-bottom:2px;">
+            Camp canonic
+          </label>
+          <select id="canon-{{ loop.index }}" name="canon">
+            <option value="">— ignorat —</option>
+            {% for field_key, field_label in canonical_fields %}
+            <option value="{{ field_key }}"
+                    {% if field_key == best %}selected{% endif %}>
+              {{ field_key }} — {{ field_label }}
+            </option>
+            {% endfor %}
+          </select>
+        </div>
+      </div>
+      {% endfor %}
+
+      <div style="margin-top:16px; display:flex; align-items:center; gap:12px; flex-wrap:wrap;">
+        <button type="submit"
+                style="min-height:44px; padding:10px 24px; font-size:14px;">
+          Salveaza si continua la preview
+        </button>
+        <span class="muted" style="font-size:12px;">
+          maparea se retine pentru fisiere cu acelasi antet
+        </span>
+      </div>
+    </form>
+
+    <div style="margin-top:12px;">
+      <a href="/" class="muted" style="font-size:13px;">Incarca alt fisier</a>
+    </div>
+  </div>
+</div>

app/web/templates/_preview_import.html

@@ -0,0 +1,236 @@
+<div id="import-section">
+  <div class="card">
+    <div style="display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-bottom:12px;">
+      <h2 style="font-size:15px; margin:0;">
+        Preview —
+        <span class="muted" style="font-weight:400;">{{ filename or ("import #" ~ import_id) }}</span>
+      </h2>
+      <span class="muted" style="margin-left:auto; font-size:13px;">{{ total }} randuri</span>
+    </div>
+
+    {% if message %}
+    <div class="flash" style="{% if error %}border-color:var(--err); background:#241a1a;{% endif %} margin-bottom:12px;"
+         {% if error %}role="alert"{% endif %}>
+      {{ message }}
+    </div>
+    {% endif %}
+
+    <!-- Rezumat stari -->
+    <div style="display:flex; gap:8px; flex-wrap:wrap; margin-bottom:12px;">
+      {% set status_labels = [
+        ('ok',               'gata de trimis'),
+        ('needs_review',     'verifica valori'),
+        ('needs_mapping',    'fara cod RAR'),
+        ('needs_data',       'date lipsa'),
+        ('already_sent',     'deja trimis'),
+        ('duplicate_in_file','dublicat in fisier'),
+      ] %}
+      {% for status_key, label in status_labels %}
+      {%- set cnt = summary.get(status_key, 0) -%}
+      {% if cnt > 0 %}
+      <span class="pill s-{{ status_key }}">{{ cnt }} {{ label }}</span>
+      {% endif %}
+      {% endfor %}
+    </div>
+
+    <!-- Butoane filtrare stare -->
+    <div style="display:flex; gap:6px; flex-wrap:wrap; margin-bottom:10px;" role="group"
+         aria-label="Filtrare dupa stare">
+      <button type="button" class="filter-btn" data-filter="all"
+              style="min-height:36px; font-size:13px; padding:4px 12px;">
+        Toate ({{ total }})
+      </button>
+      {% for status_key, label in status_labels %}
+      {%- set cnt = summary.get(status_key, 0) -%}
+      {% if cnt > 0 %}
+      <button type="button" class="filter-btn" data-filter="{{ status_key }}"
+              style="min-height:36px; font-size:13px; padding:4px 12px;
+                     background:transparent; border-color:var(--line); color:var(--ink);">
+        {{ status_key }} ({{ cnt }})
+      </button>
+      {% endif %}
+      {% endfor %}
+    </div>
+
+    <!-- Tabel preview + bara confirmare (un singur form) -->
+    <form id="confirm-form"
+          hx-post="/_import/{{ import_id }}/confirma"
+          hx-target="#import-section"
+          hx-swap="outerHTML">
+
+      <div class="tablewrap">
+        <table>
+          <thead>
+            <tr>
+              <th>#</th>
+              <th>VIN</th>
+              <th>Nr. Inm.</th>
+              <th>Data</th>
+              <th>KM final</th>
+              <th>Operatie</th>
+              <th>Stare</th>
+              <th>Note</th>
+              <th>Verificat?</th>
+            </tr>
+          </thead>
+          <tbody>
+          {% for row in rows %}
+          {%- set res = row.resolved -%}
+          {%- set status = row.resolved_status -%}
+          {%- set prestatii = res.get('prestatii') or [] -%}
+          {%- set op = (prestatii[0].get('cod_prestatie') or prestatii[0].get('cod_op_service', '')) if prestatii else '' -%}
+          <tr data-status="{{ status }}"
+              style="{% if status == 'needs_review' %}background:rgba(230,179,74,.04);{% elif status in ('already_sent', 'duplicate_in_file') %}opacity:.65;{% endif %}">
+            <td class="muted">{{ row.row_index + 1 }}</td>
+            <td>{{ res.get('vin') or '<span class="muted">—</span>' | safe }}</td>
+            <td>{{ res.get('nr_inmatriculare') or '' }}</td>
+            <td>{{ res.get('data_prestatie') or '' }}</td>
+            <td>{{ res.get('odometru_final') or '' }}</td>
+            <td>{{ op or '<span class="muted">—</span>' | safe }}</td>
+            <td>
+              <span class="pill s-{{ status }}">{{ status }}</span>
+            </td>
+            <td class="muted" style="font-size:12px; white-space:normal; max-width:220px;">
+              {% if status == 'already_sent' and row.get('already_sent_info') %}
+                {% set ai = row.already_sent_info %}
+                deja trimis {{ (ai.get('created_at') or '')[:10] }}
+                {% if ai.get('id_prezentare') %}(#{{ ai.id_prezentare }}){% endif %}
+              {% elif status == 'duplicate_in_file' and row.get('duplicate_with') %}
+                dubla cu randul
+                {% for idx in row.duplicate_with %}{{ idx + 1 }}{% if not loop.last %}, {% endif %}{% endfor %}
+              {% elif row.flags %}
+                {{ row.flags[0] }}
+              {% elif row.errors %}
+                {%- set e = row.errors[0] -%}
+                {%- if e is mapping -%}
+                  {{ e.values() | list | first }}
+                {%- else -%}
+                  {{ e }}
+                {%- endif -%}
+              {% endif %}
+            </td>
+            <td style="text-align:center;">
+              {% if status == 'needs_review' %}
+              <label class="chk" style="min-height:44px; justify-content:center; cursor:pointer;"
+                     title="Bifat inseamna ca ai verificat valorile si le incluzi in trimitere">
+                <input type="checkbox" name="reviewed_rows" value="{{ row.row_index }}"
+                       onchange="updateN()"
+                       aria-label="Verificat — randul {{ row.row_index + 1 }} (VIN: {{ res.get('vin', '') }})">
+                verif.
+              </label>
+              {% endif %}
+            </td>
+          </tr>
+          {% endfor %}
+          </tbody>
+        </table>
+      </div>
+
+      <!-- Bara confirmare (sticky jos) -->
+      <div class="sticky-bar">
+        <div style="flex:1; min-width:280px;">
+          <!-- Banner declarant (D12) — direct deasupra input-ului N -->
+          <div class="banner warn" style="margin-bottom:10px; padding:8px 12px; border-radius:6px;"
+               role="note" aria-live="polite">
+            Confirmand, TU esti declarantul acestor
+            <strong id="n-display">{{ summary.get('ok', 0) }}</strong>
+            prezentari la RAR (ireversibil).
+          </div>
+
+          <div style="display:flex; gap:12px; align-items:center; flex-wrap:wrap;">
+            <div>
+              <label for="n-confirmat"
+                     style="font-size:13px; color:var(--muted); display:block; margin-bottom:2px;">
+                Numar prezentari de confirmat
+              </label>
+              <input type="number" id="n-confirmat" name="n_confirmat"
+                     value="{{ summary.get('ok', 0) }}"
+                     min="0" required
+                     style="max-width:80px;"
+                     aria-describedby="n-hint">
+              <span id="n-hint" class="muted" style="font-size:12px; margin-left:6px;">
+                ({{ summary.get('ok', 0) }} ok
+                {% if summary.get('needs_review', 0) %}
+                + pana la {{ summary.get('needs_review', 0) }} verificate manual
+                {% endif %})
+              </span>
+            </div>
+
+            <div>
+              <label for="confirmed-by"
+                     style="font-size:13px; color:var(--muted); display:block; margin-bottom:2px;">
+                Declarant (optional)
+              </label>
+              <input type="text" id="confirmed-by" name="confirmed_by"
+                     placeholder="email sau nume"
+                     style="max-width:200px;">
+            </div>
+          </div>
+        </div>
+
+        <div style="display:flex; flex-direction:column; gap:6px; align-self:flex-end;">
+          <button type="submit"
+                  id="confirm-btn"
+                  style="min-height:44px; padding:10px 28px; font-size:14px;"
+                  {% if not summary.get('ok', 0) %}disabled title="Niciun rand ok de trimis"{% endif %}>
+            Trimite la RAR
+          </button>
+          {% if summary.get('needs_data', 0) or summary.get('needs_mapping', 0) or summary.get('needs_review', 0) %}
+          <a href="/v1/import/{{ import_id }}/export-failed" download
+             style="font-size:12px; text-align:center;">
+            descarca randuri cu probleme (CSV)
+          </a>
+          {% endif %}
+        </div>
+      </div>
+
+    </form>
+
+    <div style="padding:8px 0 4px;">
+      <a href="/" class="muted" style="font-size:13px;">Incarca alt fisier</a>
+    </div>
+
+  </div>
+</div>
+
+<script>
+(function() {
+  var nOk = {{ summary.get('ok', 0) | int }};
+
+  /* Actualizeaza N si bannerul cand se bifeaza needs_review */
+  function updateN() {
+    var checked = document.querySelectorAll('input[name="reviewed_rows"]:checked').length;
+    var total = nOk + checked;
+    var inp = document.getElementById('n-confirmat');
+    var disp = document.getElementById('n-display');
+    var btn = document.getElementById('confirm-btn');
+    if (inp) inp.value = total;
+    if (disp) disp.textContent = total;
+    if (btn) btn.disabled = (total === 0);
+  }
+
+  /* Filtrare randuri dupa stare */
+  function filterRows(status) {
+    document.querySelectorAll('tbody tr[data-status]').forEach(function(tr) {
+      tr.style.display = (status === 'all' || tr.dataset.status === status) ? '' : 'none';
+    });
+    document.querySelectorAll('.filter-btn').forEach(function(b) {
+      var active = b.dataset.filter === status;
+      b.style.background = active ? 'var(--accent)' : '';
+      b.style.borderColor = active ? 'var(--accent)' : '';
+      b.style.color = active ? '#fff' : '';
+    });
+  }
+
+  /* Expune functiile global pentru onclick inline */
+  window.updateN = updateN;
+  window.filterRows = filterRows;
+
+  /* Filtru implicit "Toate" activ la incarcare */
+  filterRows('all');
+
+  /* Focus pe campul N la deschidere (a11y — D12) */
+  var ni = document.getElementById('n-confirmat');
+  if (ni) { ni.focus(); ni.select(); }
+})();
+</script>

app/web/templates/_upload.html

@@ -0,0 +1,106 @@
+<div id="import-section">
+  <div class="card">
+    <h2 style="font-size:15px; margin:0 0 12px;">Import fisier (xlsx / csv)</h2>
+
+    {% if message %}
+    <div class="flash" style="margin-bottom:12px;">{{ message }}</div>
+    {% endif %}
+
+    {% if error %}
+    <div class="flash" style="border-color:var(--err); background:#241a1a; margin-bottom:12px;"
+         role="alert">{{ error }}</div>
+    {% endif %}
+
+    {% if sheets %}
+    <div class="flash" style="border-color:var(--warn); background:#201c0f; margin-bottom:12px;">
+      Fisierul are mai multe foi de lucru. Alege foaia de mai jos si incarca din nou.
+    </div>
+    {% endif %}
+
+    <form id="upload-form"
+          hx-post="/_import/upload"
+          hx-target="#import-section"
+          hx-swap="outerHTML"
+          hx-encoding="multipart/form-data"
+          hx-indicator="#upload-spinner">
+
+      {% if sheets %}
+      <div style="margin-bottom:12px;">
+        <label for="sheet-select"
+               style="display:block; margin-bottom:4px; font-size:13px; color:var(--muted);">
+          Foaie de lucru
+        </label>
+        <select id="sheet-select" name="sheet_name" style="min-width:200px;">
+          {% for s in sheets %}
+          <option value="{{ s }}">{{ s }}</option>
+          {% endfor %}
+        </select>
+      </div>
+      {% endif %}
+
+      <div class="drop-zone" id="drop-zone"
+           role="region" aria-label="Zona de incarcare fisier">
+        {% if not sheets %}
+        <p style="font-size:17px; margin:0 0 4px; font-weight:600;">Primul fisier? Trage-l aici.</p>
+        <p class="muted" style="margin:0 0 16px; font-size:13px;">xlsx sau csv, max 5000 randuri</p>
+        {% else %}
+        <p class="muted" style="margin:0 0 16px; font-size:14px;">
+          Incarca fisierul din nou dupa ce ai ales foaia.
+        </p>
+        {% endif %}
+
+        <input id="file-input" type="file" name="file" accept=".xlsx,.xls,.csv"
+               style="display:none;" aria-label="Selecteaza fisier xlsx sau csv">
+        <button type="button" id="upload-btn"
+                style="min-height:44px; padding:10px 24px; font-size:14px;">
+          Alege fisier
+        </button>
+      </div>
+
+      <p class="muted" style="margin:8px 0 0; font-size:12px;">
+        NU se trimite nimic la RAR pana confirmi explicit.
+      </p>
+
+      <span id="upload-spinner" class="htmx-indicator muted"
+            style="font-size:13px; margin-top:6px; display:inline;">
+        se parseaza fisierul...
+      </span>
+    </form>
+  </div>
+</div>
+
+<script>
+(function() {
+  var btn = document.getElementById('upload-btn');
+  var fi  = document.getElementById('file-input');
+  var dz  = document.getElementById('drop-zone');
+  var frm = document.getElementById('upload-form');
+  if (!btn || !fi || !frm) return;
+
+  btn.addEventListener('click', function() { fi.click(); });
+
+  fi.addEventListener('change', function() {
+    if (fi.files.length > 0) frm.requestSubmit();
+  });
+
+  dz.addEventListener('dragover', function(e) {
+    e.preventDefault();
+    dz.classList.add('drag-over');
+  });
+  dz.addEventListener('dragleave', function(e) {
+    if (!dz.contains(e.relatedTarget)) dz.classList.remove('drag-over');
+  });
+  dz.addEventListener('drop', function(e) {
+    e.preventDefault();
+    dz.classList.remove('drag-over');
+    var f = (e.dataTransfer.files || [])[0];
+    if (!f) return;
+    try {
+      var dt = new DataTransfer();
+      dt.items.add(f);
+      fi.files = dt.files;
+    } catch (_) {}
+    frm.requestSubmit();
+  });
+})();
+</script>

app/web/templates/base.html

@@ -28,8 +28,24 @@
     .pill { font-size:12px; padding:2px 8px; border-radius:99px; border:1px solid var(--line); }
     .s-queued{color:var(--accent);} .s-sending{color:var(--warn);} .s-sent{color:var(--ok);}
     .s-error,.s-needs_data,.s-needs_mapping{color:var(--err);}
+    .s-ok{color:var(--ok);}
+    .s-needs_review{color:var(--warn);}
+    .s-already_sent,.s-duplicate_in_file{color:var(--muted);}
     .muted { color:var(--muted); }
     a { color:var(--accent); }
+    /* Drop zone upload fisier */
+    .drop-zone { border:2px dashed var(--line); border-radius:8px; padding:32px 20px;
+                 text-align:center; transition:border-color .15s,background .15s; }
+    .drop-zone.drag-over { border-color:var(--accent); background:rgba(91,141,239,.05); }
+    /* Banner varianta warn (nu eroare) */
+    .banner.warn { border-left-color:var(--warn); background:#201c0f; }
+    /* Bara confirmare sticky */
+    .sticky-bar { position:sticky; bottom:0; background:var(--card); border-top:1px solid var(--line);
+                  padding:12px 16px; display:flex; align-items:flex-start; gap:16px;
+                  flex-wrap:wrap; z-index:10; }
+    /* Indicator HTMX — ascuns pana la request */
+    .htmx-indicator { display:none; }
+    .htmx-indicator.htmx-request { display:inline; }
     /* Link-uri de actiune in antetul cardurilor: zona de atins mai mare (>=36px) si
        feedback la hover; pe ecrane inguste antetul se rupe curat sub titlu. */
     .cardlink { font-size:13px; padding:7px 10px; border-radius:6px; display:inline-flex;

app/web/templates/dashboard.html

@@ -1,6 +1,9 @@
 {% extends "base.html" %}
 {% block content %}
 
+<!-- Sectiunea de import fisier: stare initiala = drop zone; HTMX swapeaza in flow -->
+{% include '_upload.html' %}
+
 <div class="card banner {% if not blocked %}hidden{% endif %}"
      hx-get="/_fragments/banner" hx-trigger="every 15s" hx-swap="outerHTML">
   <strong>Atentie:</strong> {{ blocked }} submission-uri blocate (error / needs_data / needs_mapping).

tests/test_import_ui.py

@@ -0,0 +1,450 @@
+"""Teste UI web import (U5) — upload → mapare coloane → preview → confirmare.
+
+Verifica:
+  - Dashboard randeaza sectiunea de upload
+  - Upload xlsx → mapare noua → fragment _mapcoloane returnat
+  - Upload xlsx cu mapare existenta → preview direct
+  - Salvare mapare coloane → preview randat
+  - Preview afiseaza rezumat stari si randul tabelului
+  - Confirmare cu N corect → succes (in coada)
+  - Confirmare cu N gresit → eroare explicita
+  - Reset → drop zone gol
+  - Erori upload (fisier invalid, prea mare, header neclar)
+  - Sheet selector la multi-sheet xlsx
+"""
+
+from __future__ import annotations
+
+import io
+import os
+import tempfile
+
+import pytest
+
+
+@pytest.fixture()
+def client(monkeypatch):
+    tmp = tempfile.mkdtemp()
+    monkeypatch.setenv("AUTOPASS_DB_PATH", os.path.join(tmp, "t.db"))
+    from app.config import get_settings
+
+    get_settings.cache_clear()
+    from app.main import app
+    from fastapi.testclient import TestClient
+
+    with TestClient(app) as c:
+        yield c
+    get_settings.cache_clear()
+
+
+def _make_xlsx_bytes(rows: list[dict]) -> bytes:
+    """Construieste un xlsx minimal cu openpyxl pentru fixture teste."""
+    openpyxl = pytest.importorskip("openpyxl")
+    wb = openpyxl.Workbook()
+    ws = wb.active
+    if not rows:
+        return b""
+    headers = list(rows[0].keys())
+    ws.append(headers)
+    for row in rows:
+        ws.append([row.get(h) for h in headers])
+    buf = io.BytesIO()
+    wb.save(buf)
+    return buf.getvalue()
+
+
+def _make_csv_bytes(rows: list[dict], sep: str = ";") -> bytes:
+    """Construieste un CSV minimal pentru fixture teste."""
+    import csv
+    import io
+
+    buf = io.StringIO()
+    if not rows:
+        return b""
+    writer = csv.DictWriter(buf, fieldnames=list(rows[0].keys()), delimiter=sep)
+    writer.writeheader()
+    writer.writerows(rows)
+    return buf.getvalue().encode("utf-8")
+
+
+_SAMPLE_ROWS = [
+    {
+        "VIN": "WVWZZZ1KZAW000123",
+        "Nr inmatriculare": "B001TST",
+        "Data prestatie": "15.06.2026",
+        "Odometru final": "123456",
+        "Operatie": "Revizie",
+    },
+    {
+        "VIN": "WVWZZZ1KZAW000456",
+        "Nr inmatriculare": "B002TST",
+        "Data prestatie": "16.06.2026",
+        "Odometru final": "200000",
+        "Operatie": "Revizie",
+    },
+]
+
+
+def _seed_op_mapping(client, cod_op: str = "Revizie", cod_prest: str = "OE-1") -> None:
+    """Seeda o mapare de operatii cod_op → cod_prestatie via API."""
+    client.post("/v1/mapari", json={
+        "cod_op_service": cod_op,
+        "cod_prestatie": cod_prest,
+        "auto_send": True,
+    })
+
+
+# --------------------------------------------------------------------------- #
+# Dashboard                                                                    #
+# --------------------------------------------------------------------------- #
+
+def test_dashboard_contine_drop_zone(client):
+    """Dashboard-ul randeaza sectiunea de upload cu drop zone si mesaj warmth."""
+    r = client.get("/")
+    assert r.status_code == 200
+    assert "Primul fisier" in r.text
+    assert "drop-zone" in r.text
+    assert "NU se trimite nimic" in r.text
+    assert "import-section" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Upload xlsx — mapare noua                                                    #
+# --------------------------------------------------------------------------- #
+
+def test_upload_xlsx_fara_mapare_arata_formular_mapare(client):
+    """Upload xlsx fara mapare salvata → fragment mapare coloane."""
+    xlsx = _make_xlsx_bytes(_SAMPLE_ROWS)
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("test.xlsx", xlsx, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")},
+    )
+    assert r.status_code == 200
+    # Formular de mapare coloane
+    assert "Mapare coloane" in r.text
+    assert "mapare-coloane" in r.text  # URL in form action
+    # Coloanele din fisier apar in formular
+    assert "VIN" in r.text
+    assert "Data prestatie" in r.text
+    # Sugestii fuzzy pentru VIN
+    assert "vin" in r.text.lower()
+
+
+def test_upload_csv_fara_mapare_arata_formular_mapare(client):
+    """Upload CSV cu separator ; → formular mapare coloane."""
+    csv_bytes = _make_csv_bytes(_SAMPLE_ROWS)
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("test.csv", csv_bytes, "text/csv")},
+    )
+    assert r.status_code == 200
+    assert "Mapare coloane" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Salvare mapare coloane → preview                                             #
+# --------------------------------------------------------------------------- #
+
+def _upload_and_get_import_id(client, rows=None) -> int:
+    """Helper: incarca fisier si extrage import_id din raspuns."""
+    xlsx = _make_xlsx_bytes(rows or _SAMPLE_ROWS)
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("test.xlsx", xlsx, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")},
+    )
+    assert r.status_code == 200
+    # Extrage import_id din URL-ul form action din raspuns
+    text = r.text
+    # Form action contine /_import/{id}/mapare-coloane
+    import re
+    m = re.search(r"/_import/(\d+)/mapare-coloane", text)
+    assert m, f"Nu s-a gasit import_id in raspuns: {text[:500]}"
+    return int(m.group(1))
+
+
+def test_salvare_mapare_coloane_arata_preview(client):
+    """Dupa salvarea maparii de coloane, raspunsul contine preview-ul."""
+    # Asigura ca nomenclatorul are OE-1 (seeding automat la init_db)
+    import_id = _upload_and_get_import_id(client)
+
+    r = client.post(
+        f"/_import/{import_id}/mapare-coloane",
+        data={
+            "colname":      ["VIN", "Nr inmatriculare", "Data prestatie", "Odometru final", "Operatie"],
+            "canon":        ["vin", "nr_inmatriculare", "data_prestatie", "odometru_final", "operatie"],
+            "format_data":  "DD.MM.YYYY",
+        },
+    )
+    assert r.status_code == 200
+    # Preview trebuie sa contina elementele cheie
+    assert "Preview" in r.text
+    assert "confirm-form" in r.text
+    assert "n-confirmat" in r.text
+    # Rezumat stari
+    assert "gata de trimis" in r.text or "ok" in r.text
+
+
+def test_preview_arata_randul_vin(client):
+    """Preview contine VIN-ul din fisier."""
+    import_id = _upload_and_get_import_id(client)
+    client.post(
+        f"/_import/{import_id}/mapare-coloane",
+        data={
+            "colname":     ["VIN", "Nr inmatriculare", "Data prestatie", "Odometru final", "Operatie"],
+            "canon":       ["vin", "nr_inmatriculare", "data_prestatie", "odometru_final", "operatie"],
+            "format_data": "DD.MM.YYYY",
+        },
+    )
+    r = client.get(f"/_import/{import_id}/preview")
+    assert r.status_code == 200
+    assert "WVWZZZ1KZAW000123" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Upload cu mapare existenta → preview direct                                  #
+# --------------------------------------------------------------------------- #
+
+def test_upload_cu_mapare_existenta_sare_direct_la_preview(client):
+    """Al doilea upload cu acelasi antet → preview imediat (mapare retinuta)."""
+    # Primul upload + salvare mapare
+    import_id1 = _upload_and_get_import_id(client)
+    client.post(
+        f"/_import/{import_id1}/mapare-coloane",
+        data={
+            "colname":     ["VIN", "Nr inmatriculare", "Data prestatie", "Odometru final", "Operatie"],
+            "canon":       ["vin", "nr_inmatriculare", "data_prestatie", "odometru_final", "operatie"],
+            "format_data": "DD.MM.YYYY",
+        },
+    )
+
+    # Al doilea upload cu acelasi antet
+    xlsx = _make_xlsx_bytes(_SAMPLE_ROWS)
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("test2.xlsx", xlsx, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")},
+    )
+    assert r.status_code == 200
+    # Trebuie sa ajunga direct la preview, nu la mapare
+    assert "Preview" in r.text
+    assert "confirm-form" in r.text
+    assert "Mapare retinuta aplicata automat" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Confirmare (gate HARD)                                                       #
+# --------------------------------------------------------------------------- #
+
+def _setup_preview(client) -> int:
+    """Upload + mapare + seeda operatii + intoarce import_id gata de confirmare."""
+    _seed_op_mapping(client)  # "Revizie" → "OE-1"
+    import_id = _upload_and_get_import_id(client)
+    client.post(
+        f"/_import/{import_id}/mapare-coloane",
+        data={
+            "colname":     ["VIN", "Nr inmatriculare", "Data prestatie", "Odometru final", "Operatie"],
+            "canon":       ["vin", "nr_inmatriculare", "data_prestatie", "odometru_final", "operatie"],
+            "format_data": "DD.MM.YYYY",
+        },
+    )
+    return import_id
+
+
+def test_confirmare_n_corect_pune_in_coada(client):
+    """Confirmare cu N corect → randurile ok ajung in coada."""
+    import_id = _setup_preview(client)
+
+    # Compute preview pentru a afla n_ok
+    r_prev = client.get(f"/_import/{import_id}/preview")
+    assert r_prev.status_code == 200
+
+    # Citeste summary din DB
+    from app.db import get_connection
+
+    conn = get_connection()
+    try:
+        batch = conn.execute(
+            "SELECT ok FROM import_batches WHERE id=?", (import_id,)
+        ).fetchone()
+        n_ok = batch["ok"]
+    finally:
+        conn.close()
+
+    assert n_ok > 0, "Asteptat cel putin un rand ok dupa seeding corect"
+
+    r = client.post(
+        f"/_import/{import_id}/confirma",
+        data={"n_confirmat": str(n_ok), "confirmed_by": "test@test.ro"},
+    )
+    assert r.status_code == 200
+    # Succes → drop zone cu mesaj
+    assert "S-au pus in coada" in r.text or "prezentari" in r.text
+    # Sectiunea se reseteaza la drop zone
+    assert "drop-zone" in r.text
+
+    # Verifica ca submissions au fost create
+    conn2 = get_connection()
+    try:
+        n = conn2.execute(
+            "SELECT COUNT(*) FROM submissions WHERE batch_id=?", (import_id,)
+        ).fetchone()[0]
+        assert n == n_ok, f"Asteptat {n_ok} submissions, gasit {n}"
+    finally:
+        conn2.close()
+
+
+def test_confirmare_n_gresit_arata_eroare(client):
+    """Confirmare cu N gresit → eroare clara, nu enqueue."""
+    import_id = _setup_preview(client)
+    client.get(f"/_import/{import_id}/preview")  # calculeaza si stocheaza starea
+
+    r = client.post(
+        f"/_import/{import_id}/confirma",
+        data={"n_confirmat": "99", "confirmed_by": ""},
+    )
+    assert r.status_code == 200
+    # Trebuie sa arate eroare de confirmare sau preview cu eroare
+    assert (
+        "difera" in r.text
+        or "Numarul confirmat" in r.text
+        or "Niciun rand ok" in r.text
+    )
+
+
+# --------------------------------------------------------------------------- #
+# Reset                                                                        #
+# --------------------------------------------------------------------------- #
+
+def test_reset_arata_drop_zone_gol(client):
+    """GET /_import/reset → drop zone gol fara mesaje."""
+    r = client.get("/_import/reset")
+    assert r.status_code == 200
+    assert "drop-zone" in r.text
+    assert "Primul fisier" in r.text
+    assert "import-section" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Erori upload                                                                 #
+# --------------------------------------------------------------------------- #
+
+def test_upload_fisier_invalid_arata_eroare(client):
+    """Upload fisier invalid → mesaj de eroare in drop zone."""
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("test.xlsx", b"not a real xlsx file", "application/octet-stream")},
+    )
+    assert r.status_code == 200
+    # Trebuie sa arate drop zone cu eroare
+    assert "drop-zone" in r.text or "import-section" in r.text
+    # Eroare vizibila
+    assert "nerecunoscut" in r.text.lower() or "invalid" in r.text.lower() or "eroare" in r.text.lower()
+
+
+def test_upload_fisier_csv_antet_o_coloana_arata_eroare(client):
+    """CSV cu o singura coloana reala → header acceptat sau eroare gestionata."""
+    bad = b"date_fara_header\nval1\nval2\n"
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("test.csv", bad, "text/csv")},
+    )
+    # Fie detecteaza header OK fie arata eroare
+    assert r.status_code == 200
+    assert "import-section" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Multi-sheet xlsx                                                             #
+# --------------------------------------------------------------------------- #
+
+def test_upload_multi_sheet_arata_selector(client):
+    """xlsx cu mai multe foi → selector de foaie in drop zone."""
+    openpyxl = pytest.importorskip("openpyxl")
+    wb = openpyxl.Workbook()
+    ws1 = wb.active
+    ws1.title = "Date"
+    ws1.append(["VIN", "Data"])
+    ws1.append(["WVW001", "15.06.2026"])
+    ws2 = wb.create_sheet("Raport")
+    ws2.append(["Total"])
+    ws2.append(["1"])
+    buf = io.BytesIO()
+    wb.save(buf)
+    xlsx = buf.getvalue()
+
+    r = client.post(
+        "/_import/upload",
+        files={"file": ("multi.xlsx", xlsx, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")},
+    )
+    assert r.status_code == 200
+    # Trebuie sa arate selector de foi
+    assert "foi" in r.text.lower() or "sheet" in r.text.lower() or "foaie" in r.text.lower()
+    # Foile trebuie sa apara ca optiuni
+    assert "Date" in r.text or "Raport" in r.text
+
+
+# --------------------------------------------------------------------------- #
+# Elemente a11y (D10/D11/D12)                                                 #
+# --------------------------------------------------------------------------- #
+
+def test_preview_contine_banner_declarant(client):
+    """Preview contine bannerul declarant (D12) cu text despre ireversibil."""
+    import_id = _setup_preview(client)
+    r = client.get(f"/_import/{import_id}/preview")
+    assert r.status_code == 200
+    assert "declarantul" in r.text
+    assert "ireversibil" in r.text
+    assert "banner" in r.text
+
+
+def test_preview_contine_checkboxuri_needs_review(client):
+    """Randurile needs_review au checkbox 'verificat' (D11)."""
+    # Cream un rand cu VIN numeric → needs_review
+    rows_with_review = [
+        {
+            "VIN": "1234567890",  # VIN numeric → coercion flag → needs_review
+            "Nr inmatriculare": "B001TST",
+            "Data prestatie": "15.06.2026",
+            "Odometru final": "123456",
+            "Operatie": "OE-1",
+        }
+    ]
+    import_id = _upload_and_get_import_id(client, rows=rows_with_review)
+    client.post(
+        f"/_import/{import_id}/mapare-coloane",
+        data={
+            "colname":     ["VIN", "Nr inmatriculare", "Data prestatie", "Odometru final", "Operatie"],
+            "canon":       ["vin", "nr_inmatriculare", "data_prestatie", "odometru_final", "operatie"],
+            "format_data": "DD.MM.YYYY",
+        },
+    )
+    r = client.get(f"/_import/{import_id}/preview")
+    assert r.status_code == 200
+    # Checkbox reviewed_rows prezent pentru randul needs_review
+    assert "reviewed_rows" in r.text
+    assert "needs_review" in r.text
+
+
+def test_preview_duplicate_in_file_are_text(client):
+    """Randurile duplicate_in_file arata text 'dubla cu randul N' (D10 — nu doar culoare)."""
+    _seed_op_mapping(client, "Revizie", "OE-1")
+    # Doua randuri identice → duplicate_in_file
+    dup_rows = [
+        {"VIN": "WVWZZZ1KZAW000123", "Nr inmatriculare": "B001TST",
+         "Data prestatie": "15.06.2026", "Odometru final": "123456", "Operatie": "Revizie"},
+        {"VIN": "WVWZZZ1KZAW000123", "Nr inmatriculare": "B001TST",
+         "Data prestatie": "15.06.2026", "Odometru final": "123456", "Operatie": "Revizie"},
+    ]
+    import_id = _upload_and_get_import_id(client, rows=dup_rows)
+    client.post(
+        f"/_import/{import_id}/mapare-coloane",
+        data={
+            "colname":     ["VIN", "Nr inmatriculare", "Data prestatie", "Odometru final", "Operatie"],
+            "canon":       ["vin", "nr_inmatriculare", "data_prestatie", "odometru_final", "operatie"],
+            "format_data": "DD.MM.YYYY",
+        },
+    )
+    r = client.get(f"/_import/{import_id}/preview")
+    assert r.status_code == 200
+    # Text explicit pentru duplicate_in_file (nu doar culoare — cerinta daltonism D10)
+    assert "dubla cu randul" in r.text
+    assert "duplicate_in_file" in r.text