feat(scanner): Implement Deno analyzer and associated tests

- Added Deno analyzer with comprehensive metadata and evidence structure.
- Created a detailed implementation plan for Sprint 130 focusing on Deno analyzer.
- Introduced AdvisoryAiGuardrailOptions for managing guardrail configurations.
- Developed GuardrailPhraseLoader for loading blocked phrases from JSON files.
- Implemented tests for AdvisoryGuardrailOptions binding and phrase loading.
- Enhanced telemetry for Advisory AI with metrics tracking.
- Added VexObservationProjectionService for querying VEX observations.
- Created extensive tests for VexObservationProjectionService functionality.
- Introduced Ruby language analyzer with tests for simple and complex workspaces.
- Added Ruby application fixtures for testing purposes.

docs/modules/concelier/architecture.md

@@ -556,12 +556,13 @@ concelier:
   * `concelier.fetch.docs_total{source}`
   * `concelier.fetch.bytes_total{source}`
   * `concelier.parse.failures_total{source}`
-  * `concelier.map.statements_total{source}`
-  * `concelier.observations.write_total{result=ok|noop|error}`
-  * `concelier.linksets.updated_total{result=ok|skip|error}`
-  * `concelier.linksets.conflicts_total{type}`
-  * `concelier.export.bytes{kind}`
-  * `concelier.export.duration_seconds{kind}`
+  * `concelier.map.statements_total{source}`
+  * `concelier.observations.write_total{result=ok|noop|error}`
+  * `concelier.linksets.updated_total{result=ok|skip|error}`
+  * `concelier.linksets.conflicts_total{type}`
+  * `concelier.export.bytes{kind}`
+  * `concelier.export.duration_seconds{kind}`
+  * `advisory_ai_chunk_requests_total{tenant,result,cache}` and `advisory_ai_guardrail_blocks_total{tenant,reason,cache}` instrument the `/advisories/{key}/chunks` surfaces that Advisory AI consumes. Cache hits now emit the same guardrail counters so operators can see blocked segments even when responses are served from cache.
 * **Tracing** around fetch/parse/map/observe/linkset/export.
 * **Logs**: structured with `source`, `uri`, `docDigest`, `advisoryKey`, `exportId`.