Merge main into recovery/corruption-incident-and-ui2-work

Fix merge conflicts intelligently:
- package.json: Use main's test script pattern (tests/guards/*.test.mjs && tests/**/*.test.ts)
- src/app/api/events/route.ts: Merge polling logic with telemetry event emission
- src/hooks/use-beads-subscription.ts: Merge event type handling (issues/telemetry/activity)

All changes preserve the new telemetry-based architecture while accepting
main's improved test coverage patterns.

skills/beadboard-driver/scripts/readiness-report.mjs

@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 
 import fs from 'node:fs/promises';
+import path from 'node:path';
 
 function parseArgs(argv) {
   const output = {};
@@ -43,7 +44,8 @@ async function withArtifactExistence(artifacts) {
     };
     if (typeof artifact.path === 'string' && artifact.path.trim()) {
       try {
-        await fs.access(artifact.path);
+        const resolved = path.resolve(artifact.path);
+        await fs.access(resolved);
         item.exists = true;
       } catch {
         item.exists = false;