fix(agents): ניתוב הערת-יו"ר לא ל-issue סגור (cancelled) — תמיד ל-CEO החי

בעיה חוזרת: הקלדת הוראה בתיבת "כתוב הוראה לסוכנים..." נבלעה בשקט. השרת בחר
את היעד ב-`active[-1]` תוך סינון `done` בלבד — לא `cancelled`. כשה-child האחרון
בוטל (למשל 1027-04-26: "חישוב טיעונים" cancelled שנוצר אחרי ה-issue הראשי),
ההערה נותבה אליו; Paperclip מדלג על wakeup ל-issue מבוטל → ההוראה לא הגיעה לאיש.

תיקון (G1 — נרמול במקור, לא תיקון-בקריאה):
- `pick_default_comment_target` חדש ב-paperclip_client — מעדיף את ה-issue הראשי
  החי של ה-CEO (top-level+open), נופל ל-open כלשהו, ואז top-level, ואף פעם לא
  מעדיף child-סגור. `get_case_issues` מחזיר כעת `parent_id`.
- app.py מנתב דרכו; מחזיר `issue_status` כדי שה-UI יוכל לסמן יעד-סגור.
- נחשף דרך ה-Port (G12) כ-`pc_pick_default_comment_target`.
- 6 בדיקות ל-picker (כולל תרחיש 1027-04-26 המדויק).

Invariants: G1 (נרמול-במקור), G2 (אין מסלול-ניתוב מקביל), G12 (מגע-Paperclip דרך ה-Port).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/paperclip_client.py

@@ -484,7 +484,8 @@ async def get_case_issues(case_number: str) -> list[dict]:
             """SELECT DISTINCT ON (i.id)
                       i.id, i.title, i.status, i.identifier, i.priority,
                       i.assignee_agent_id, a.name AS assignee_name,
-                      i.started_at, i.completed_at, i.created_at, i.company_id
+                      i.started_at, i.completed_at, i.created_at, i.company_id,
+                      i.parent_id
                FROM issues i
                LEFT JOIN agents a ON i.assignee_agent_id = a.id
                LEFT JOIN plugin_state ps ON ps.scope_id = i.id::text
@@ -510,6 +511,7 @@ async def get_case_issues(case_number: str) -> list[dict]:
                 "completed_at": r["completed_at"].isoformat() if r["completed_at"] else None,
                 "created_at": r["created_at"].isoformat() if r["created_at"] else None,
                 "company_id": str(r["company_id"]),
+                "parent_id": str(r["parent_id"]) if r["parent_id"] else None,
             }
             for r in sorted_rows
         ]
@@ -517,6 +519,43 @@ async def get_case_issues(case_number: str) -> list[dict]:
         await conn.close()
 
 
+# A comment posted to a closed issue never wakes an agent — Paperclip skips the
+# wakeup for done/cancelled issues, so the chair's instruction is silently
+# swallowed. The default-target picker MUST therefore avoid these statuses.
+CLOSED_ISSUE_STATUSES = frozenset({"done", "cancelled"})
+
+
+def pick_default_comment_target(issues: list[dict]) -> dict:
+    """Choose which issue a chair comment routes to when none is specified.
+
+    ``issues`` is ordered oldest→newest (see :func:`get_case_issues`). Comment
+    routing is meant to reach the CEO, whose live "התחל תהליך ניסוח" issue is
+    top-level (``parent_id is None``) and open. Preference order:
+      1. newest OPEN top-level issue — the live CEO main issue;
+      2. newest OPEN issue of any depth — a live sub-issue if no main is open;
+      3. newest top-level issue even if closed — better than a closed child;
+      4. newest issue overall — last resort.
+    Excluding closed statuses is the fix for the recurring bug where the newest
+    non-done issue was a *cancelled* child, so the wakeup was skipped and the
+    instruction vanished. ``issues`` must be non-empty.
+    """
+    def is_open(i: dict) -> bool:
+        return i["status"] not in CLOSED_ISSUE_STATUSES
+
+    def is_top(i: dict) -> bool:
+        return i.get("parent_id") is None
+
+    for pred in (
+        lambda i: is_open(i) and is_top(i),
+        is_open,
+        is_top,
+    ):
+        matches = [i for i in issues if pred(i)]
+        if matches:
+            return matches[-1]
+    return issues[-1]
+
+
 async def get_issue_comments(issue_ids: list[str]) -> list[dict]:
     """Get all comments on a list of Paperclip issues, with agent metadata."""
     if not issue_ids: