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_dashboard.py

@@ -47,12 +47,12 @@ def _body(**over):
 def test_dashboard_renders_with_rar_state(client):
     r = client.get("/")
     assert r.status_code == 200
-    # Dupa US-003 bara de status e incarcata via HTMX (hx-trigger=load, every 15s)
+    # Bara de status e incarcata via HTMX (hx-trigger=load, every 15s)
     assert "/_fragments/status" in r.text, "Dashboard-ul trebuie sa referenceze fragmentul de status"
     # Fragmentul de status contine starea de sanatate (text uman, nu brut tehnic)
     rs = client.get("/_fragments/status")
     assert rs.status_code == 200
-    # US-003 D6: strip sanatate unificat — "declaratiile" apare in orice stare (curg/blocat)
+    # strip sanatate unificat — "declaratiile" apare in orice stare (curg/blocat)
     assert "declaratiile" in rs.text.lower(), (
         f"Strip sanatate lipseste din fragment. HTML: {rs.text[:500]}"
     )
@@ -73,7 +73,7 @@ def test_nomenclator_fragment_lists_seed(client):
 def test_submissions_fragment_empty_state(client):
     r = client.get("/_fragments/submissions")
     assert r.status_code == 200
-    # US-005: empty state prietenos cu indemn la Import (nu mesajul tehnic vechi)
+    # empty state prietenos cu indemn la Import (nu mesajul tehnic vechi)
     assert "Nicio trimitere" in r.text or "incepe cu Import" in r.text or "?tab=import" in r.text