feat(5.12): modal editare + cont obligatoriu la import; design.md + PRD 5.13 revizuit (/autoplan)

5.12 (livrat): editare in modal a randurilor de preview, cont obligatoriu inainte de
import, formular editare extras (_form_editare, _editare_preview_modal), plus suita de
teste aferenta (preview edit/compact, mapare op, form editare, signup, admin panel).

Design + planificare:
- docs/design.md: sistem de design (tokeni, breakpoints, scara control, componente, a11y).
- docs/prd/prd-5.12-* si prd-5.13-* (5.13 cu raport /autoplan: CEO+Design+Eng, audit trail).

Curatare: sterse PNG-urile de test/mockup temporare din radacina.

Nota: implementarea CSS 5.13 (responsive compact + sistem butoane) NU e inca facuta —
planul revizuit cere refactorul testelor fragile din test_web_responsive.py INAINTE de CSS.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/schema.sql

@@ -10,6 +10,7 @@ CREATE TABLE IF NOT EXISTS accounts (
     id              INTEGER PRIMARY KEY AUTOINCREMENT,
     name            TEXT NOT NULL,
     cui             TEXT,
+    email           TEXT,                       -- email canonic de contact al firmei (US-001, PRD 5.12); nullable pt. conturi legacy
     active          INTEGER NOT NULL DEFAULT 1,  -- lifecycle cont (3.1); gate „in asteptare" consumat de 3.3
     -- Stare de ciclu de viata explicita (5.5). Superset al lui `active`: mentinem invariantul
     -- active=1 <=> status='active' (vezi accounts.set_status / set_active). Worker gate-uieste pe status.
@@ -125,6 +126,7 @@ CREATE TABLE IF NOT EXISTS import_rows (
     row_index       INTEGER NOT NULL,
     raw_json        TEXT NOT NULL,          -- PII criptat (Fernet, ca submissions)
     override_json   TEXT,                   -- patch CANONIC editat in preview, criptat Fernet (3.6, Approach B); NULL = fara editare
+    reviewed        INTEGER NOT NULL DEFAULT 0, -- US-007 (PRD 5.12): 0=neconfirmat, 1=confirmat de operator; NU intra in payload/idempotenta
     resolved_status TEXT NOT NULL DEFAULT 'pending'
                         CHECK (resolved_status IN (
                             'pending','ok','needs_mapping','needs_data',