feat(family): family canon reaches the session - entry readout, retrieval reach, skill, report cue (milestone 463 step 6, #4992)

- enter_project carries a `family` key, but only when the project has
  something to answer: counts of unassessed, owed and to-recheck answers,
  each with the list_family_adoptions call that lists it. It shows on every
  entry, never by platform touch: entry is when work is chosen, and an
  unanswered idea is otherwise invisible.
- Retrieval: a widened project search (include_global_kinds) now also
  reaches the canon ideas on the project's platforms. It also reaches their
  references in the project's languages, or all of them when none matches.
  An off-platform project gets none, and the plain project filter (the
  duplicate gate) is unchanged.
- Closing a task returns `family_owed`, the owed answers filed while it was
  open, and the report cue asks for them to be named.
- New plugin skill family-canon (moment work.record) covers when to
  evaluate a promotion, answering in order, what counts as a reason, the
  precedent reflex and the conflict order. _INSTRUCTIONS, create_note,
  create_snippet, classify_shapes and reporting-back point at it.
  The plugin version is minted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/scribe/mcp/tools/projects.py

@@ -16,10 +16,13 @@ keeps working.
 """
 from __future__ import annotations
 
+import logging
+
 from scribe.mcp._context import current_user_id
 from scribe.mcp.tools import systems as systems_tools
 from scribe.services import coverage as coverage_svc
 from scribe.services import design_systems as design_systems_svc
+from scribe.services import family_adoption as family_adoption_svc
 from scribe.services import inception as inception_svc
 from scribe.services import milestones as milestones_svc
 from scribe.services import notes as notes_svc
@@ -31,6 +34,8 @@ from scribe.services import trash as trash_svc
 from scribe.services.background import spawn
 from scribe.services.note_usage import record_surfaced
 
+logger = logging.getLogger(__name__)
+
 
 async def list_projects() -> dict:
     """List all Scribe projects for the current user.
@@ -70,8 +75,8 @@ async def enter_project(project_id: int) -> dict:
     Returns a dict with keys: project, milestone_summary, open_tasks, systems,
     design_system, project_rules, pattern_coverage —
     plus unplanned_milestones, milestone_summary_omitted,
-    unplanned_milestones_omitted, inception and systems_bootstrap, each
-    present only when it applies (see below).
+    unplanned_milestones_omitted, family, inception and systems_bootstrap,
+    each present only when it applies (see below).
 
     `project` is id, title, status and the full goal. get_project has the
     whole record.
@@ -132,6 +137,14 @@ async def enter_project(project_id: int) -> dict:
     family ideas reach this project. An empty list on a project that plainly
     ships something is worth correcting with set_project_platforms.
 
+    `family` (milestone 463) appears ONLY when this project has family canon
+    to answer: how many canon ideas on its platforms are `unassessed`, how
+    many it `owed`s, and how many answers were given against an older canon
+    version (`needs_recheck`) — each with the list_family_adoptions call that
+    lists them. Answer an unassessed idea when your work reaches its area
+    (get_family_adoption, then assess_family_adoption, or classify the code
+    against it); the family-canon skill has the order.
+
     `inception` (milestone 297) appears ONLY when the project is yours and
     nobody has decided what it inherits: it carries the current defaults
     (design system, Systems, platforms), what to ask the
@@ -299,6 +312,15 @@ async def enter_project(project_id: int) -> dict:
         )
     if systems_bootstrap:
         out["systems_bootstrap"] = systems_bootstrap
+    # Family canon (milestone 463 step 6): counts only, attached when one is
+    # non-zero. A readout must never fail the handshake it rides on.
+    try:
+        family = await family_adoption_svc.family_readout(uid, project_id)
+    except Exception:
+        logger.warning("family readout failed for project %s", project_id, exc_info=True)
+        family = None
+    if family:
+        out["family"] = family
     if inception_ask:
         out["inception"] = inception_ask
     return out