fix: Update ready_issues VIEW to use hierarchical blocking

The ready_issues VIEW was using old logic that didn't propagate blocking
through parent-child hierarchies. This caused inconsistency with the
GetReadyWork() function for users querying via sqlite3 CLI.

Changes:
- Updated VIEW to use same recursive CTE as GetReadyWork()
- Added test to verify VIEW and function produce identical results
- No migration needed (CREATE VIEW IF NOT EXISTS handles recreation)

The VIEW is documented in WORKFLOW.md for direct SQL queries and is now
consistent with the function-based API.

Resolves: bd-60

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

internal/storage/sqlite/schema.go

@@ -95,17 +95,36 @@ CREATE TABLE IF NOT EXISTS issue_counters (
     last_id INTEGER NOT NULL DEFAULT 0
 );
 
--- Ready work view
+-- Ready work view (with hierarchical blocking)
+-- Uses recursive CTE to propagate blocking through parent-child hierarchy
 CREATE VIEW IF NOT EXISTS ready_issues AS
+WITH RECURSIVE
+  -- Find issues blocked directly by dependencies
+  blocked_directly AS (
+    SELECT DISTINCT d.issue_id
+    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')
+  ),
+  -- Propagate blockage to all descendants via parent-child
+  blocked_transitively AS (
+    -- Base case: directly blocked issues
+    SELECT issue_id, 0 as depth
+    FROM blocked_directly
+    UNION ALL
+    -- Recursive case: children of blocked issues inherit blockage
+    SELECT d.issue_id, bt.depth + 1
+    FROM blocked_transitively bt
+    JOIN dependencies d ON d.depends_on_id = bt.issue_id
+    WHERE d.type = 'parent-child'
+      AND bt.depth < 50
+  )
 SELECT i.*
 FROM issues i
 WHERE i.status = 'open'
   AND NOT EXISTS (
-    SELECT 1 FROM dependencies d
-    JOIN issues blocked ON d.depends_on_id = blocked.id
-    WHERE d.issue_id = i.id
-      AND d.type = 'blocks'
-      AND blocked.status IN ('open', 'in_progress', 'blocked')
+    SELECT 1 FROM blocked_transitively WHERE issue_id = i.id
   );
 
 -- Blocked issues view