session_delete cleared the per-session state (session_hist_ and
session_node_) but not the shared session_index cache. The next call
to session_list() hit the fast path (state_get("session_index")) and
returned the deleted session until the daemon restarted.
session_update_patch already called state_set("session_index","") to
force a re-fetch from Engram; session_delete now does the same.
Add tests/test_sessions.el covering:
- session_title_from_message (pure function, all edge cases)
- session_make_content (JSON structure and required session:meta marker)
- DELETE cache invalidation: session_index cleared, fast path disabled
- PATCH cache invalidation: stale title/folder not returned via fast path
- GET /api/sessions: session_list() fast path returns session_index
(confirms removal of the stale route_sessions() engram stub)
bridge_save was wrapping messages and tools_json with json_safe() before
storing them as string fields. Since both are already well-formed JSON arrays
containing double quotes, json_safe added a second escape layer. agentic_resume
then called json_get() which stripped only one layer, leaving the messages array
corrupted before it was passed back into agentic_loop.
Fix: store messages as messages_raw and tools_json as tools_raw as inline raw
JSON values (unquoted), and read them back with json_get_raw. Backward
compatibility: fall back to the old string-escaped fields if the raw fields are
absent, so sessions saved before this fix can still be resumed.
Also fixes write_file returning a pre-escaped literal instead of calling
json_safe consistently with every other tool result.
The first registration called route_sessions() which searched for a
'session-start' label that no longer exists, returning an empty array
on every list request and making the sidebar appear empty after restart.
The second registration (dead code) called the correct session_list().
Removes route_sessions() entirely and the stale first route block.
Also wires up session_delete() and session_update_patch() — both existed
in sessions.el but had no HTTP routes — via new DELETE and PATCH blocks.