Marco Allegretti 86d0011016 feat(appd): implement runtime supervisor with process spawning and READY signal ... runtime.rs — process lifecycle manager: - supervise(session_id, app_id, registry): spawns the weft-runtime child process identified by WEFT_RUNTIME_BIN env var. If unset, logs debug and returns immediately (no-op until runtime binary is available). - Child process invoked as: <WEFT_RUNTIME_BIN> <app_id> <session_id> with stdout/stderr piped, stdin closed. - wait_for_ready(): reads stdout line-by-line; returns Ok(()) on first line matching 'READY'; returns Err if stdout closes without it. - 30-second READY_TIMEOUT via tokio::time::timeout; on expiry, kills the child and transitions session to Stopped. - On success: sets session state to Running, broadcasts AppReady to all connected WebSocket clients via registry broadcast channel. - drain_stderr(): async task that forwards child stderr lines to tracing at WARN level for observability. - On process exit: sets session state to Stopped regardless of exit code. main.rs — wiring: - SessionRegistry now owns broadcast::Sender<Response>; Default creates the channel internally. Added set_state(), subscribe(), broadcast() methods. Removed standalone broadcast_tx from run(); WS handlers subscribe via registry.lock().await.subscribe(). - dispatch::LaunchApp spawns a tokio task calling runtime::supervise immediately after creating the session. supervise is a no-op when WEFT_RUNTIME_BIN is unset, so existing tests are unaffected. Cargo.toml: added tokio 'process' and 'time' features.		2026-03-11 09:17:20 +01:00
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src	feat(appd): implement runtime supervisor with process spawning and READY signal	2026-03-11 09:17:20 +01:00
Cargo.toml	feat(appd): implement runtime supervisor with process spawning and READY signal	2026-03-11 09:17:20 +01:00