feat: add workplan aliases and legacy meter

Adds preferred workplan REST/event surfaces, legacy-meter telemetry and weekly review summaries, documentation/dashboard terminology updates, dashboard API loading fixes, and close-out sync for STATE-WP-0052 and STATE-WP-0054.

AGENTS.md

@@ -27,8 +27,8 @@ there is no MCP server for Codex agents.
 # Offline brief — works without hub connection
 cat .custodian-brief.md
 
-# Active workstreams for this domain
-curl -s "http://127.0.0.1:8000/workstreams/?topic_id=cee7bedf-2b48-46ef-8601-006474f2ad7a&status=active" \
+# Active workplans for this domain
+curl -s "http://127.0.0.1:8000/workplans/?topic_id=cee7bedf-2b48-46ef-8601-006474f2ad7a&status=active" \
   | python3 -m json.tool
 
 # Check inbox
@@ -80,7 +80,7 @@ curl -s -X PATCH "http://127.0.0.1:8000/tasks/<task_id>" \
 ## Session Protocol
 
 **Start:**
-1. `cat .custodian-brief.md` — domain goal and open workstreams (offline-safe)
+1. `cat .custodian-brief.md` — domain goal and open workplans (offline-safe)
 2. Check inbox: `GET /messages/?to_agent=state-hub&unread_only=true`; mark read
 3. Scan workplans: `ls workplans/` — note `status: ready`, `active`, or `blocked` files and open tasks
 4. Check human-needed tasks: `GET /tasks/?needs_human=true`
@@ -135,6 +135,10 @@ state_hub_workstream_id: "<uuid>"   # written by fix-consistency — do not edit
 ---
 ```
 
+`state_hub_workstream_id` is the legacy bridge field for the current State Hub
+database identity. Prefer workplan-named API routes for new client code while
+this bridge field remains in compatibility use.
+
 Use `proposed` for a new draft, `ready` after review against current repo
 state, and `finished` after implementation. `stalled` and `needs_review` are
 derived health labels, not frontmatter statuses.