chore(ci): add session diagnostics CodeQL quality shard

Adds a focused non-security CodeQL quality shard for session diagnostics, delivery queues, and related diagnostic contracts.

.github/codeql/codeql-session-diagnostics-boundary-critical-quality.yml

@@ -0,0 +1,48 @@
+name: openclaw-codeql-session-diagnostics-boundary-critical-quality
+
+disable-default-queries: true
+
+queries:
+  - uses: security-and-quality
+
+query-filters:
+  - include:
+      problem.severity:
+        - error
+  - exclude:
+      tags:
+        - security
+
+paths:
+  - src/auto-reply/reply/queue
+  - src/auto-reply/reply/post-compaction-context.ts
+  - src/auto-reply/reply/startup-context.ts
+  - src/infra/diagnostic-*.ts
+  - src/infra/diagnostics-timeline.ts
+  - src/infra/session-delivery-queue*.ts
+  - src/infra/outbound/base-session-key.ts
+  - src/infra/outbound/delivery-queue*.ts
+  - src/infra/outbound/outbound-session.ts
+  - src/infra/outbound/session-binding*.ts
+  - src/infra/outbound/session-context.ts
+  - src/infra/outbound/targets-session.ts
+  - src/logging/diagnostic*.ts
+  - src/commands/doctor-session-*.ts
+  - src/commands/session-store-targets.ts
+  - src/commands/sessions*.ts
+
+paths-ignore:
+  - "**/node_modules"
+  - "**/coverage"
+  - "**/*.generated.ts"
+  - "**/*.bundle.js"
+  - "**/*-runtime.js"
+  - "**/*.test.ts"
+  - "**/*.test.tsx"
+  - "**/*.e2e.test.ts"
+  - "**/*.e2e.test.tsx"
+  - "**/*test-support*"
+  - "**/*test-helper*"
+  - "**/*mock*"
+  - "**/*fixture*"
+  - "**/*bench*"