feat(dashboard): activité 7 jours agrégée et capture pré-remplie (#19, #23)

get_project_activity(): fermetures/déplacements 7 j et dernier
événement par dépôt en une seule requête sur board_events;
la page /capture accepte ?repo= pour pré-remplir le dépôt.

app/main.py

@@ -58,6 +58,7 @@ from app.models import (
     get_metrics,
     get_notes,
     get_picks,
+    get_project_activity,
     get_stats,
     init_db,
     log_event,
@@ -600,6 +601,24 @@ async def dashboard(request: Request):
         repo_info["starred"] = full_name in starred_names
     for repo_info in inactive:
         repo_info["starred"] = repo_info["full_name"] in starred_names
+    activity_by_repo = get_project_activity()
+    today_utc = datetime.now(timezone.utc).date()
+    for repo_info in active + inactive + archived:
+        act = activity_by_repo.get(repo_info["full_name"])
+        if act is None:
+            repo_info["activity"] = None
+            continue
+        idle_days = None
+        if act["last_at"]:
+            last_dt = _parse_datetime(act["last_at"])
+            if last_dt is not None:
+                idle_days = (today_utc - last_dt.date()).days
+        repo_info["activity"] = {
+            "closed": act["closed"],
+            "moved": act["moved"],
+            "idle_days": idle_days,
+            "last_at": act["last_at"] or "",
+        }
     for repo_info in active:
         repo_info["home_tab"] = "active"
     for repo_info in inactive:
@@ -2305,13 +2324,17 @@ async def api_capture(request: Request):
 
 
 @app.get("/capture", response_class=HTMLResponse)
-async def capture_page(request: Request):
-    """Quick-capture page: form, status and usage instructions."""
+async def capture_page(request: Request, repo: str = ""):
+    """Quick-capture page: form, status and usage instructions.
+
+    `?repo=Owner/name` pre-fills the target repo (issue #23: the
+    project card's quick actions capture straight into a project).
+    """
     settings = get_settings()
     return render(
         request,
         "capture.html",
-        capture_repo=settings.capture_repo,
+        capture_repo=repo.strip() or settings.capture_repo,
         api_enabled=bool(settings.capture_token),
         ntfy_topic=settings.capture_ntfy_topic,
         ntfy_url=settings.ntfy_url,