fix: idea-jobs never claimed — JOIN tasks → LEFT JOIN (v0.6.1)

T-505 added the kind-discriminator to wait_for_job's response payload but
missed the claim-SQL: tryClaimJob does INNER JOIN tasks ON cj.task_id,
which matches NO rows for IDEA_*-jobs (task_id IS NULL by design — M12
schema). Result: idea-jobs sit forever in QUEUED, never picked up.

Reproduced live: IDEA-002 (cmoshh2ne...) had a IDEA_GRILL job queued at
10:26 that 2 active workers ignored for 14+ minutes.

Fix: LEFT JOIN tasks. plan_snapshot stays empty for idea-jobs (no
verify-flow needed for grill/make-plan).

Bump to 0.6.1 since 0.6.0 production deploy has the broken claim-SQL.

Tests: 153/153 still green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "scrum4me-mcp",
-  "version": "0.6.0",
+  "version": "0.6.1",
   "description": "MCP server for Scrum4Me — exposes dev-flow tools and prompts via the Model Context Protocol",
   "type": "module",
   "bin": {