timestamp sanitization, CoT logging, reasoning field fix, persistent queue

- store/types.rs: sanitize timestamps on capnp load — old records had
  raw offsets instead of unix epoch, breaking sort-by-timestamp queries
- agents/api.rs: drain reasoning tokens from UI channel into LLM logs
  so we can see Qwen's chain-of-thought in agent output
- agents/daemon.rs: persistent task queue (pending-tasks.jsonl) —
  tasks survive daemon restarts. Push before spawn, remove on completion,
  recover on startup.
- api/openai.rs: only send reasoning field when explicitly configured,
  not on every request (fixes vllm warning)
- api/mod.rs: add 600s total request timeout as backstop for hung
  connections
- Cargo.toml: enable tokio-console feature for task introspection

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

poc-memory/Cargo.toml

@@ -20,7 +20,7 @@ memmap2 = "0.9"
 rayon = "1"
 peg = "0.8"
 paste = "1"
-jobkit = { path = "/home/kent/jobkit", features = ["daemon"] }
+jobkit = { path = "/home/kent/jobkit", features = ["daemon", "console"] }
 poc-agent = { path = "../poc-agent" }
 tokio = { version = "1", features = ["rt-multi-thread"] }
 redb = "2"