fix: add days>0 guard and limit param to stale/feedback endpoints

web/app.py

@@ -1138,6 +1138,8 @@ async def list_cases(
 @app.get("/api/cases/stale")
 async def api_stale_cases(days: int = 3):
     """Return cases that haven't been updated in N days and are not in 'final' or 'new' status."""
+    if days <= 0:
+        return {"cases": [], "total": 0}
     pool = await db.get_pool()
     async with pool.acquire() as conn:
         rows = await conn.fetch(
@@ -1147,7 +1149,7 @@ async def api_stale_cases(days: int = 3):
             FROM cases
             WHERE status NOT IN ('final', 'new')
               AND updated_at < now() - make_interval(days => $1)
-            ORDER BY updated_at ASC
+            ORDER BY updated_at ASC  -- oldest stale first (longest overdue = highest priority)
             """,
             days,
         )
@@ -4044,8 +4046,10 @@ async def api_resolve_feedback(feedback_id: str, body: dict):
 
 
 @app.get("/api/chair-feedback/weekly-summary")
-async def api_chair_feedback_weekly_summary(days: int = 7):
+async def api_chair_feedback_weekly_summary(days: int = 7, limit: int = 100):
     """Return chair feedback from the last N days as a text summary for the CEO agent."""
+    if days <= 0:
+        return {"summary": "", "entry_count": 0}
     pool = await db.get_pool()
     async with pool.acquire() as conn:
         rows = await conn.fetch(
@@ -4055,8 +4059,10 @@ async def api_chair_feedback_weekly_summary(days: int = 7):
             LEFT JOIN cases c ON c.id = cf.case_id
             WHERE cf.created_at >= now() - make_interval(days => $1)
             ORDER BY cf.created_at DESC
+            LIMIT $2
             """,
             days,
+            limit,
         )
     if not rows:
         return {"summary": "", "entry_count": 0}