Rename Concelier Source modules to Connector

src/StellaOps.Concelier.Connector.Vndr.Chromium/AGENTS.md

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+# AGENTS
+## Role
+Chromium/Chrome vendor feed connector parsing Stable Channel Update posts; authoritative vendor context for Chrome/Chromium versions and CVE lists; maps fixed versions as affected ranges.
+## Scope
+- Crawl Chrome Releases blog list; window by publish date; fetch detail posts; identify "Stable Channel Update" and security fix sections.
+- Validate HTML; extract version trains, platform notes (Windows/macOS/Linux/Android), CVEs, acknowledgements; map fixed versions.
+- Persist raw docs and maintain source_state cursor; idempotent mapping.
+## Participants
+- Source.Common (HTTP, HTML helpers, validators).
+- Storage.Mongo (document, dto, advisory, alias, affected, reference, psirt_flags, source_state).
+- Models (canonical; affected ranges by product/version).
+- Core/WebService (jobs: source:chromium:fetch|parse|map).
+- Merge engine (later) to respect vendor PSIRT precedence for Chrome.
+## Interfaces & contracts
+- Aliases: CHROMIUM-POST:<yyyy-mm-dd or slug> plus CVE ids.
+- Affected: Vendor=Google, Product=Chrome/Chromium (platform tags), Type=vendor; Versions indicate introduced? (often unknown) and fixed (for example 127.0.6533.88); tags mark platforms.
+- References: advisory (post URL), release notes, bug links; kind set appropriately.
+- Provenance: method=parser; value=post slug; recordedAt=fetch time.
+## In/Out of scope
+In: vendor advisory mapping, fixed version emission per platform, psirt_flags vendor context.
+Out: OS distro packaging semantics; bug bounty details beyond references.
+## Observability & security expectations
+- Metrics: SourceDiagnostics exports the shared `concelier.source.http.*` counters/histograms tagged `concelier.source=chromium`, enabling dashboards to observe fetch volumes, parse failures, and map affected counts via tag filters.
+- Logs: post slugs, version extracted, platform coverage, timing; allowlist blog host.
+## Tests
+- Author and review coverage in `../StellaOps.Concelier.Connector.Vndr.Chromium.Tests`.
+- Shared fixtures (e.g., `MongoIntegrationFixture`, `ConnectorTestHarness`) live in `../StellaOps.Concelier.Testing`.
+- Keep fixtures deterministic; match new cases to real-world advisories or regression scenarios.