fix: A25 + A21 (partiel) — plus d'exception muque, transaction protégée (v7.3.8)

- A25 — 84 `except Exception: pass/…` → `logger.exception("<fonction>")`
  (19 fichiers : api_v2 30, dashboard 10, board 7, sites 5, workspace 5,
  api_v2_helpers 5, …) ; `logger` ajouté là où il manquait (api_v2_helpers,
  sites + `import logging`)
- A25 critique — les `try` autour de `materialize_properties` supprimés dans
  `create_collection_v2` ET `apply_db_template_v2` : un échec interrompt la
  transaction au lieu de commiter une collection sans schéma
- test `test_collection_rollback_when_materialize_fails` (Bearer v2, monkeypatch
  qui lève, assertions : RuntimeError + 0 ligne commitée)
- A21 partiel — `PRAGMA busy_timeout=5000` dans `get_conn()` (point d'entrée
  unique) ; commentaire `ponytail:` : le wrapper async + les 510 call sites
  restent à migrer module par module
- suite **1028/1028** · `ruff check app tests` OK

app/services/api_v2_helpers.py

@@ -7,6 +7,7 @@ from __future__ import annotations
 
 import hashlib
 import json
+import logging
 import time
 from datetime import UTC, datetime
 from typing import Any
@@ -17,6 +18,8 @@ from fastapi.responses import JSONResponse
 from app.config import settings
 from app.db import get_conn
 
+logger = logging.getLogger(__name__)
+
 # ── ISO-8601 ──────────────────────────────────────────────────────────────
 
 def to_iso8601(value: str | None) -> str | None:
@@ -54,7 +57,7 @@ def row_to_dict(row, *, iso_fields: tuple[str, ...] = ("created_at", "updated_at
             try:
                 d[k] = json.loads(d[k] or "{}" if d[k].strip().startswith("{") or d[k].strip().startswith("[") else d[k])
             except Exception:
-                pass
+                logger.exception("row_to_dict")
     return d
 
 # ── Pagination ────────────────────────────────────────────────────────────
@@ -163,7 +166,7 @@ def resolve_bearer_token(token: str) -> dict | None:
                     if dt.timestamp() < time.time():
                         return None
                 except Exception:
-                    pass
+                    logger.exception("resolve_bearer_token")
             u = conn.execute("SELECT id, login, full_name, email, is_admin FROM users WHERE id=?", (row["user_id"],)).fetchone()
             if u:
                 d = dict(u)
@@ -175,7 +178,7 @@ def resolve_bearer_token(token: str) -> dict | None:
                     conn.execute("UPDATE api_tokens SET last_used_at=CURRENT_TIMESTAMP WHERE id=?", (row["id"],))
                     conn.commit()
                 except Exception:
-                    pass
+                    logger.exception("resolve_bearer_token")
                 return d
         # 2) extension_devices
         row = conn.execute("SELECT user_id, scopes FROM extension_devices WHERE token_hash=? AND revoked=0", (th,)).fetchone()
@@ -257,7 +260,7 @@ def audit_log(user: dict, action: str, resource_type: str = "", resource_id: str
             )
             conn.commit()
     except Exception:
-        pass
+        logger.exception("audit_log")
 
 # ── Rate limit per token (in-memory) ─────────────────────────────────────
 
@@ -307,4 +310,4 @@ def store_idempotency(key: str, user_id: int, data: Any, status_code: int = 200)
             )
             conn.commit()
     except Exception:
-        pass
+        logger.exception("store_idempotency")

app/services/backup.py

@@ -41,7 +41,7 @@ def backup_db(now: datetime | None = None) -> str | None:
         with sqlite3.connect(str(db_path)) as conn:
             conn.execute("PRAGMA wal_checkpoint(TRUNCATE)")
     except Exception:
-        pass
+        logger.exception("backup_db")
 
     dest_dir = _backup_dir()
     filename = f"flowdeck-{now:%Y%m%d-%H%M%S}.db"

app/services/github_adapter.py

@@ -194,7 +194,7 @@ class GitHubAdapter(ForgeAdapter):
                     if langs:
                         repo_info["language"] = max(langs, key=langs.get)
             except Exception:
-                pass
+                logger.exception("get_repo_info")
 
             self._set_cache(cache_key, repo_info)
             return repo_info

app/services/realtime_server.py

@@ -349,7 +349,7 @@ class RealtimeManager:
         try:
             await conn.ws.close(code=4413)
         except Exception:
-            pass
+            logger.exception("_evict_slow")
 
     async def _broadcast(self, room: Room, msg: dict, exclude: RTConn | None = None):
         """Enfile ``msg`` chez chaque membre — jamais d'attente sur le socket."""

app/services/sso_provisioning.py

@@ -780,4 +780,4 @@ def purge_stale_requests() -> None:
             )
             conn.commit()
     except Exception:
-        pass
+        logger.exception("purge_stale_requests")