refactor: comentarii strict functionale, fara referinte PRD/stories

Curatare globala a comentariilor si docstring-urilor (app, tools, teste,
scripturi): eliminate referintele la PRD-uri, US-xxx, task-uri istorice si
review-uri; pastrata doar informatia functionala, formulata scurt. Regula
adaugata in CLAUDE.md (sectiunea Stil). Fara modificari de cod sau comportament.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/test_import_ui.py

@@ -1,4 +1,4 @@
-"""Teste UI web import (U5) — upload → mapare coloane → preview → confirmare.
+"""Teste UI web import — upload → mapare coloane → preview → confirmare.
 
 Verifica:
   - Dashboard randeaza sectiunea de upload
@@ -104,7 +104,7 @@ def _seed_op_mapping(client, cod_op: str = "Revizie", cod_prest: str = "OE-1") -
 def test_dashboard_contine_drop_zone(client):
     """Tab-ul Import randeaza sectiunea de upload cu drop zone si mesaj warmth.
 
-    Dupa US-003 sectiunea de import e in tab-ul Import (?tab=import), nu pe pagina principala.
+    Sectiunea de import e in tab-ul Import (?tab=import), nu pe pagina principala.
     """
     r = client.get("/?tab=import")
     assert r.status_code == 200
@@ -389,11 +389,11 @@ def test_upload_multi_sheet_arata_selector(client):
 
 
 # --------------------------------------------------------------------------- #
-# Elemente a11y (D10/D11/D12)                                                 #
+# Elemente a11y                                                              #
 # --------------------------------------------------------------------------- #
 
 def test_preview_contine_banner_declarant(client):
-    """Preview contine bannerul declarant (D12) cu text despre ireversibil."""
+    """Preview contine bannerul declarant cu text despre ireversibil."""
     import_id = _setup_preview(client)
     r = client.get(f"/_import/{import_id}/preview")
     assert r.status_code == 200
@@ -403,7 +403,7 @@ def test_preview_contine_banner_declarant(client):
 
 
 def test_preview_contine_checkboxuri_needs_review(client):
-    """Randurile needs_review au checkbox 'verificat' (D11)."""
+    """Randurile needs_review au checkbox 'verificat'."""
     # Cream un rand cu VIN numeric → needs_review
     rows_with_review = [
         {
@@ -431,7 +431,7 @@ def test_preview_contine_checkboxuri_needs_review(client):
 
 
 def test_preview_duplicate_in_file_are_text(client):
-    """Randurile duplicate_in_file arata text 'dubla cu randul N' (D10 — nu doar culoare)."""
+    """Randurile duplicate_in_file arata text 'dubla cu randul N' (nu doar culoare)."""
     _seed_op_mapping(client, "Revizie", "OE-1")
     # Doua randuri identice → duplicate_in_file
     dup_rows = [
@@ -451,6 +451,6 @@ def test_preview_duplicate_in_file_are_text(client):
     )
     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)
+    # Text explicit pentru duplicate_in_file (nu doar culoare — cerinta daltonism)
     assert "dubla cu randul" in r.text
     assert "duplicate_in_file" in r.text