made tiny updates

supabase/migrations/009_canonical_status_values.sql

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+-- migration 009 — Add spec-canonical lowercase status values to intent_diffs CHECK
+-- Spec Layer 4: canonical status values are lowercase:
+--   'draft', 'exported', 'acknowledged', 'implemented', 'rejected'
+-- The current CHECK (from migration 007) only allows uppercase values.
+-- New code (Inspector.tsx, CompletionZone.tsx) inserts lowercase 'draft'.
+-- This migration expands the CHECK to accept both cases so both old and new
+-- code work without a breaking schema change.
+
+ALTER TABLE intent_diffs
+  DROP CONSTRAINT IF EXISTS intent_diffs_status_check;
+
+ALTER TABLE intent_diffs
+  ADD CONSTRAINT intent_diffs_status_check
+    CHECK (status IN (
+      -- Spec-canonical lowercase (Layer 4)
+      'draft', 'exported', 'acknowledged', 'implemented', 'rejected',
+      -- Legacy uppercase (migration 001, migration 007) — kept for compat
+      'DRAFT', 'EXPORTED', 'IMPLEMENTED', 'BLOCKED',
+      'ACKNOWLEDGED', 'REJECTED',
+      -- UI-driven additions (Inspector STATUS_COLOR map)
+      'REVIEWED', 'APPLIED'
+    ));