semi implemented and features implemented save checkpoint

docs/features/unchecked/concelier/concelier-advisory-chunks-api.md

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+# Concelier Advisory Chunks API (Paragraph-Anchored)
+
+## Module
+Concelier
+
+## Status
+IMPLEMENTED
+
+## Description
+REST API endpoint serving paragraph-anchored advisory chunks with tenant enforcement, AdvisoryRead scopes, and filters for sections/formats/limits/minLength. Designed for Advisory AI to pull deterministic paragraph anchors plus source metadata.
+
+## Implementation Details
+- **Modules**: `src/Concelier/StellaOps.Concelier.WebService/`
+- **Key Classes**:
+  - `AdvisoryChunkBuilder` (`src/Concelier/StellaOps.Concelier.WebService/Services/AdvisoryChunkBuilder.cs`) - builds paragraph-anchored chunks from advisory content
+  - `AdvisoryChunkCache` (`src/Concelier/StellaOps.Concelier.WebService/Services/AdvisoryChunkCache.cs`) - in-memory cache for advisory chunks
+  - `MessagingAdvisoryChunkCache` (`src/Concelier/StellaOps.Concelier.WebService/Services/MessagingAdvisoryChunkCache.cs`) - messaging-backed cache implementation
+  - `AdvisoryChunkOptions` (`src/Concelier/StellaOps.Concelier.WebService/Options/ConcelierOptions.cs`) - configuration for chunk sizes, limits, and formats
+- **Interfaces**: `IAdvisoryChunkCache`
+- **Source**: 2025-11-07-concelier-advisory-chunks.md
+
+## E2E Test Plan
+- [ ] Call the advisory chunks endpoint with a valid advisory ID and verify paragraph-anchored chunks are returned
+- [ ] Verify tenant enforcement: request chunks without AdvisoryRead scope and confirm 403 response
+- [ ] Verify section filter: request only specific sections and confirm only matching chunks are returned
+- [ ] Verify minLength filter: set minLength and confirm short paragraphs are excluded
+- [ ] Verify caching: request same advisory chunks twice and confirm second response is served from cache