feat(mcp): enter_project becomes a small primer: goal, recent work, open work, vocabulary (#4045)

The handshake carried the whole project record, every milestone's plan, full
rule text, the notes most recently edited and ~9k of design guidance. For
project 2 that was ~222k characters, past what an MCP client accepts as a tool
result. Each category was walked through with the operator and sized to what a
session needs on arrival; each names the call that has the rest.

- project: id, title, status and the full goal (session start's "full goal"
  pointer still lands here). get_project keeps the whole record.
- milestone_summary: the 5 most recently touched milestones, any status, most
  recent first, without plans. Summaries gain last_touched_at: the later of
  the milestone's own edit and its newest step update, from the query that
  already counts steps. milestone_summary_omitted counts the rest and points
  to list_milestones. get_project and list_milestones list every milestone,
  also without plans.
- open_tasks: the 10 most recently touched open tasks, with or without a
  milestone, each naming its milestone. list_notes gains sort="touched"
  (the later of updated_at and the newest work-log), because a log doesn't
  bump updated_at.
- recent_notes: dropped. Retrieval surfaces notes by relevance, and
  get_recent covers recency.
- systems: id and name.
- design_system: summary plus guidance_call. get_design_system gains
  resolved_guidance, the chain-merged prose; its own guidance field is only
  the departures, so session start's old pointer to it led to a fragment.
  The session start pointer and using-scribe's "Building UI" section now
  name resolved_guidance.
- rules: rules_payload(brief=True) gives project_rules as id and title plus
  subscribed_rulebooks, and records only what it shows. Retrieval delivers
  rules in full and ignores subscriptions (#4052). Other callers unchanged.
- pattern_coverage, inception and systems_bootstrap: unchanged.

Clients: the plugin's using-scribe skill, the compaction notice and session
start are updated here; the REST project summary only gains last_touched_at.
Plugin version minted.

Tests: a size ceiling on the handshake for a large project; milestone and
task selection and naming; brief rules; resolved_guidance; the session
start pointer; and a real-Postgres test that a work-log touches its task and
a step update touches its milestone.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy

src/scribe/services/notes.py

@@ -318,6 +318,9 @@ async def list_notes(
     degraded but never empty. Superseded records are not demoted here: the
     penalty reorders a top-k, and reordering a paginated, counted list would
     make page boundaries lie. The search surfaces carry the demotion.
+
+    `sort` is a Note column name, or "touched": the later of updated_at and
+    the record's newest work-log.
     """
     from scribe.services.access import notes_visibility_clause
 
@@ -442,6 +445,19 @@ async def list_notes(
         if semantic_order is not None:
             # A query is a relevance claim — see the docstring.
             query = query.order_by(semantic_order)
+        elif sort == "touched":
+            # Last touched: the later of the task's own edit and its newest
+            # work-log. Logging doesn't bump updated_at, so a task worked
+            # through its logs would otherwise sort as untouched (#4045).
+            # GREATEST skips a NULL, so a task with no logs sorts by its edit.
+            from scribe.models.task_log import TaskLog
+            last_log = (
+                select(func.max(TaskLog.created_at))
+                .where(TaskLog.task_id == Note.id)
+                .scalar_subquery()
+            )
+            touched = func.greatest(Note.updated_at, last_log)
+            query = query.order_by(touched.asc() if order == "asc" else touched.desc())
         else:
             sort_col = getattr(Note, sort, Note.updated_at)
             if order == "asc":