feat: Add 'hooked' status for GUPP work assignment (bd-s00m)

Separates semantics of 'pinned' (identity records) from work-on-hook:
- 'pinned' = domain table / identity record (agents, roles) - non-blocking
- 'hooked' = work on agent's hook (GUPP-driven) - blocks dependents

Changes:
- Add StatusHooked constant to types.go
- Update all blocking queries to include 'hooked' status
- Add cyan styling for 'hooked' in UI output
- Create migration 032 to convert pinned work items to hooked

Generated with Claude Code

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/storage/sqlite/schema.go

@@ -214,7 +214,7 @@ WITH RECURSIVE
     FROM dependencies d
     JOIN issues blocker ON d.depends_on_id = blocker.id
     WHERE d.type = 'blocks'
-      AND blocker.status IN ('open', 'in_progress', 'blocked', 'deferred')
+      AND blocker.status IN ('open', 'in_progress', 'blocked', 'deferred', 'hooked')
   ),
   -- Propagate blockage to all descendants via parent-child
   blocked_transitively AS (
@@ -245,8 +245,8 @@ SELECT
 FROM issues i
 JOIN dependencies d ON i.id = d.issue_id
 JOIN issues blocker ON d.depends_on_id = blocker.id
-WHERE i.status IN ('open', 'in_progress', 'blocked', 'deferred')
+WHERE i.status IN ('open', 'in_progress', 'blocked', 'deferred', 'hooked')
   AND d.type = 'blocks'
-  AND blocker.status IN ('open', 'in_progress', 'blocked', 'deferred')
+  AND blocker.status IN ('open', 'in_progress', 'blocked', 'deferred', 'hooked')
 GROUP BY i.id;
 `