feat(observability): Phase B — trace-store (SQLite) + out-of-process collector + trace CLI (345 tests)

trace-store (bun:sqlite): records+bodies schema (thin/fat split), idempotent insertRecords (FNV-1a id + INSERT OR IGNORE), getTurn/getBody, pure renderEasyView (D8 timeline skeleton), trace CLI. Its own DB, isolated from storage-sqlite.

observability-collector: out-of-process bin — tail journal -> splitLines/drainOnce -> trace-store.insertRecords; offset sidecar; at-least-once + idempotent; fail-safe; clean SIGINT/SIGTERM drain.

Build-config (orchestrator): root tsconfig refs; both excluded from vitest + added to test:bun (bun:sqlite); bun install.

Verified: tsc -b clean, 345 tests (273 vitest + 72 bun), biome 0 warnings/0 infos. Pipeline proven end-to-end: app -> journal -> collector -> SQLite -> 'trace <turnId>' easy-view. Known follow-up (next commit): kernel spans are flat (parent=ROOT) — run-turn nesting fix.

1 files changed, 16 insertions, 0 deletions

diff --git a/packages/trace-store/src/cli.ts b/packages/trace-store/src/cli.ts
new file mode 100644
index 0000000..9092c91
--- /dev/null
+++ b/packages/trace-store/src/cli.ts
@@ -0,0 +1,16 @@
+import { createTraceStore } from "./store.js";
+
+const turnId = process.argv[2];
+if (turnId === undefined) {
+	console.error("Usage: bun packages/trace-store/src/cli.ts <turnId> [dbPath]");
+	process.exit(1);
+}
+
+const dbPath = process.argv[3] ?? process.env.TRACE_DB_PATH ?? "./.dispatch-data/traces.db";
+const store = createTraceStore({ path: dbPath });
+try {
+	const output = store.easyView(turnId);
+	console.log(output);
+} finally {
+	store.close();
+}