feat: deliver installable local alpha sessions

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a03397-4d51-7fd1-8ff2-946eb22ea2bc

src/tamq/store.py

@@ -57,6 +57,11 @@ class Store:
 
     def register_endpoint(self, endpoint_id: str, pid: int, session: str, repos: list[str]) -> None:
         import json
+        self.db.execute(
+            "UPDATE endpoints SET disconnected_at=strftime('%s','now') "
+            "WHERE pid=? AND session=? AND endpoint_id<>? AND disconnected_at IS NULL",
+            (pid, session, endpoint_id),
+        )
         self.db.execute(
             "INSERT INTO endpoints(endpoint_id,pid,session,repos,connected_at,disconnected_at) VALUES(?,?,?,?,strftime('%s','now'),NULL) "
             "ON CONFLICT(endpoint_id) DO UPDATE SET pid=excluded.pid, session=excluded.session, repos=excluded.repos, connected_at=excluded.connected_at, disconnected_at=NULL",
@@ -73,17 +78,21 @@ class Store:
         self.db.commit()
 
     def endpoints(self) -> list[sqlite3.Row]:
-        return list(self.db.execute("SELECT * FROM endpoints ORDER BY endpoint_id"))
+        return list(
+            self.db.execute(
+                "SELECT * FROM endpoints WHERE disconnected_at IS NULL ORDER BY endpoint_id"
+            )
+        )
 
     def endpoint(self, endpoint_id: str) -> sqlite3.Row | None:
         row = self.db.execute("SELECT * FROM endpoints WHERE endpoint_id=? AND disconnected_at IS NULL", (endpoint_id,)).fetchone()
         if row is not None:
             return row
         if endpoint_id.startswith("tmux-amq-"):
-            try:
-                pid = int(endpoint_id.removeprefix("tmux-amq-").split("-", 1)[0])
-            except ValueError:
+            visible_pid = endpoint_id.removeprefix("tmux-amq-")
+            if not visible_pid.isdigit():
                 return None
+            pid = int(visible_pid)
             return self.db.execute("SELECT * FROM endpoints WHERE pid=? AND disconnected_at IS NULL ORDER BY connected_at DESC LIMIT 1", (pid,)).fetchone()
         return None