docs: document catalog cleanup, log ingestion logging, and catalog config

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -88,7 +88,8 @@ java -jar cameleer3-server-app/target/cameleer3-server-app-1.0-SNAPSHOT.jar
 - `ExecutionController` — GET /api/v1/executions (search + detail)
 - `SearchController` — POST /api/v1/search, GET /routes, GET /top-errors, GET /punchcard
 - `LogQueryController` — GET /api/v1/logs (filters: source, application, agentId, exchangeId, level, logger, q, environment, time range)
-- `LogIngestionController` — POST /api/v1/data/logs (accepts `List<LogEntry>` JSON array, each entry has `source`: app/agent)
+- `LogIngestionController` — POST /api/v1/data/logs (accepts `List<LogEntry>` JSON array, each entry has `source`: app/agent). Logs WARN for: missing agent identity, unregistered agents, empty payloads, buffer-full drops, deserialization failures. Normal acceptance at DEBUG.
+- `CatalogController` — GET /api/v1/catalog (unified app catalog merging PG managed apps + in-memory agents + CH stats), DELETE /api/v1/catalog/{applicationId} (ADMIN: dismiss app, purge all CH data + PG record). Auto-filters discovered apps older than `discoveryttldays` with no live agents.
 - `ChunkIngestionController` — POST /api/v1/ingestion/chunk/{executions|metrics|diagrams}
 - `UserAdminController` — CRUD /api/v1/admin/users, POST /{id}/roles, POST /{id}/set-password
 - `RoleAdminController` — CRUD /api/v1/admin/roles
@@ -297,7 +298,7 @@ In SaaS mode, each tenant's server and its deployed apps are isolated at the Doc
 <!-- gitnexus:start -->
 # GitNexus — Code Intelligence
 
-This project is indexed by GitNexus as **cameleer3-server** (5912 symbols, 14487 relationships, 300 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
+This project is indexed by GitNexus as **cameleer3-server** (5967 symbols, 15136 relationships, 300 execution flows). Use the GitNexus MCP tools to understand code, assess impact, and navigate safely.
 
 > If any GitNexus tool warns the index is stale, run `npx gitnexus analyze` in terminal first.