Add the my-decisions overview store queries and controller (INFD-WP-0003 T01, T02)

Store.memos_for / dispositions_by list the signed-in person's memos and
their own dispositions. ReviewController.overview classifies each row
after its own fresh PDP read and a live get-by-id engine status; refused
rows keep only the memo id, and no presentation is created.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 359683@bnt-lap001
Assistant-Session: eebdc939-7a9b-4e50-9d39-c8437e8a14ec

informed_decision/review.py

@@ -32,6 +32,22 @@ class ReviewPage:
     dispositions: tuple = ()
 
 
+# Overview groups, in display order. "unavailable" rows carry the memo id only.
+GROUPS = ("attention", "open", "accepted", "declined", "returned", "closed", "unavailable")
+OPEN_STATUSES = ("requested", "approved")
+
+
+@dataclass(frozen=True)
+class OverviewRow:
+    memo_id: str
+    group: str
+    memo: object = None
+    engine_status: str | None = None
+    reason: str | None = None
+    intent: dict | None = None
+    history: tuple = ()
+
+
 class ReviewController:
     def __init__(self, store, policy, approval_factory, *, clock=time.time):
         self.store, self.policy, self.approval_factory = store, policy, approval_factory
@@ -123,6 +139,57 @@ class ReviewController:
             self.store.memo(memo.id).version != memo.version, current["status"],
             tuple(self.store.dispositions_for(p.id)))
 
+    def overview(self, session):
+        """The signed-in person's memos, classified. Never presents, binds or stores engine state.
+
+        Every row passes its own fresh PDP read before any memo content is
+        returned; a refused or failed row keeps only its id. Engine status is
+        read live by the approval id the memo already carries — never a poll.
+        """
+        self._session(session)
+        rows = [self._overview_row(session, memo) for memo in self.store.memos_for(session.subject)]
+        return sorted(rows, key=lambda r: (GROUPS.index(r.group), r.memo_id))
+
+    def _overview_row(self, session, memo):
+        try:
+            _, observation = self._authorize(session, memo, "read")
+        except ReviewError as exc:
+            if exc.code == "session_expired":
+                raise
+            return OverviewRow(memo.id, "unavailable", reason=exc.code)
+        status, reason = None, None
+        try:
+            current = self.approval_factory(session).get_approval(memo.approval_id)
+            if current["binding"]["digest"] == memo.approval_binding_digest:
+                status = current["status"]
+            else:
+                reason = "binding_changed"
+        except (ApprovalEngineError, ValueError):
+            reason = "engine_unavailable"
+        try:
+            observation.require_current(self.clock())
+        except PolicyError as exc:
+            return OverviewRow(memo.id, "unavailable", reason=str(exc))
+        self._session(session)
+        intent = self.store.intent_for(memo.approval_id, session.subject)
+        history = tuple(self.store.dispositions_by(session.subject, memo.id))
+        latest = [d.verb for d, _ in history if d.memo_version == memo.version and d.verb is not Verb.ACCEPT]
+        if intent and intent["state"] in ("in_flight", "unresolved"):
+            group = "attention"
+        elif intent and intent["state"] == "confirmed":
+            group = "accepted"
+        elif latest and latest[-1] is Verb.DECLINE:
+            group = "declined"
+        elif latest and latest[-1] in (Verb.RETURN, Verb.DISCUSS):
+            group = "returned"
+        elif status is None or status in OPEN_STATUSES or intent:
+            # Unknown engine status stays open: the review page re-checks
+            # before anything can be bound. A prepared intent is finishable.
+            group = "open"
+        else:
+            group = "closed"
+        return OverviewRow(memo.id, group, memo, status, reason, intent, history)
+
     def acknowledge(self, session, presentation_id, highlight_ids):
         memo, p = self._presentation(session, presentation_id, current=True)
         policy_id, observation = self._authorize(session, memo, "acknowledge")