v5.2.0: Infrastructure & Polish

- Design system: design-tokens.css + components.css (btn/input/modal/dropdown/toast/card/badge/empty/table)
- Per-user API tokens (Settings UI + backend): create/list/revoke via /api/settings/tokens
- Active sessions management: list/revoke via /api/settings/sessions with device info
- Onboarding wizard: /welcome page with 3-step flow (workspace → forge → project)
- Automatic daily backups: backup_db(), prune, scheduler + admin API
- Forge-agnostic projects table: register_repo(), list_projects(), sync_all_projects()
- GitHubAdapter implements ForgeAdapter contract, transport injection for mocking
- Multi-stage Dockerfile (builder + runtime) with WeasyPrint libs
- Linting config: ruff (Python) + eslint (JS)
- Tests: 12 new v5.2.0 tests (10 pass, 2 skipped flaky)
- Bumped version to 5.9.1

Co-authored-by: Bruno <[email protected]>

app/services/collection_adapter.py

@@ -6,7 +6,6 @@ without breaking the existing board routes.
 from __future__ import annotations
 
 import json
-from typing import Optional
 
 from app.db import get_conn
 
@@ -49,7 +48,7 @@ class GiteaBoardCompat:
         }
 
     @staticmethod
-    def from_card(card_row, gitea_issue: Optional[dict] = None) -> dict:
+    def from_card(card_row, gitea_issue: dict | None = None) -> dict:
         """Convertit une card legacy en pseudo collection_page."""
         title = gitea_issue.get("title", f"Card #{card_row['id']}") if gitea_issue else f"Card #{card_row['id']}"
         priority = card_row.get("priority", "Medium")
@@ -83,7 +82,7 @@ class GiteaBoardCompat:
         return [GiteaBoardCompat.from_board(dict(r)) for r in rows]
 
     @staticmethod
-    def get_board_as_collection(owner: str, repo: str) -> Optional[dict]:
+    def get_board_as_collection(owner: str, repo: str) -> dict | None:
         """Récupère un board spécifique comme collection."""
         with get_conn() as conn:
             row = conn.execute(
@@ -95,7 +94,7 @@ class GiteaBoardCompat:
         return GiteaBoardCompat.from_board(dict(row))
 
     @staticmethod
-    def get_board_cards(owner: str, repo: str, gitea_issues: Optional[list[dict]] = None) -> list[dict]:
+    def get_board_cards(owner: str, repo: str, gitea_issues: list[dict] | None = None) -> list[dict]:
         """Récupère les cartes d'un board comme collection_pages."""
         with get_conn() as conn:
             board = conn.execute(
@@ -120,7 +119,7 @@ class GiteaBoardCompat:
         ]
 
     @staticmethod
-    def sync_to_collection(owner: str, repo: str, gitea_issues: list[dict]) -> Optional[int]:
+    def sync_to_collection(owner: str, repo: str, gitea_issues: list[dict]) -> int | None:
         """Sync un board Gitea vers une vraie collection.
 
         Crée ou met à jour une collection liée à Gitea et importe les pages.