90-day window instead of 365 days

backend/app/api/forgejo_metrics.py

@@ -383,6 +383,10 @@ async def get_forgejo_heatmap(
         raise HTTPException(status_code=status.HTTP_403_FORBIDDEN)
 
     since = utcnow() - timedelta(days=365)
+    # Line-stats fetch uses a shorter window — querying a full year of commits
+    # with stat=true paginates hundreds of pages and takes 30+ seconds on active
+    # repos.  90 days is enough context for the dashboard summary numbers.
+    line_stats_since = utcnow() - timedelta(days=90)
 
     # Fetch repos with their connections in one query
     repos_with_conns = (
@@ -441,7 +445,7 @@ async def get_forgejo_heatmap(
 
     # Line stats — served from cache; background task refreshes when stale.
     # Extract plain values NOW while the DB session is still open.
-    since_iso = since.strftime("%Y-%m-%dT%H:%M:%SZ")
+    since_iso = line_stats_since.strftime("%Y-%m-%dT%H:%M:%SZ")
     cache_key = str(ctx.organization.id)
     cached = _line_stats_cache.get(cache_key)
     now = _time.monotonic()

backend/app/services/forgejo_client.py

@@ -380,7 +380,10 @@ class ForgejoAPIClient:
         client = await self._get_client()
         total_adds = total_dels = 0
         page = 1
-        while True:
+        # Cap at 5 pages (250 commits) — prevents unbounded pagination on
+        # very active repos where each page requires Forgejo to compute
+        # per-commit diffs (?stat=true), which is the primary latency driver.
+        while page <= 5:
             response = await client.get(
                 f"/api/v1/repos/{owner}/{repo}/commits",
                 params={"since": since_iso, "limit": 50, "page": page, "stat": "true"},