fix: Copy migrations folder to Docker image + fix SQL FILTER syntax

- Dockerfile: Add COPY migrations ./migrations so auto-migrate works on remote
- intelligence.ts: Fix FILTER clause placement in aggregate functions
  - FILTER must be inside AVG(), not wrapping ROUND()
  - Remove redundant FILTER on MIN (already filtered by WHERE)
  - Remove unsupported FILTER on PERCENTILE_CONT

These fixes resolve:
- "Failed to get task counts" (worker_tasks table missing)
- "FILTER specified but round is not an aggregate function" errors
- /national page "column m.state does not exist" (mv_state_metrics missing)

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

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

backend/Dockerfile

@@ -47,6 +47,9 @@ RUN npm ci --omit=dev
 
 COPY --from=builder /app/dist ./dist
 
+# Copy migrations for auto-migrate on startup
+COPY migrations ./migrations
+
 # Create local images directory for when MinIO is not configured
 RUN mkdir -p /app/public/images/products
 

backend/src/routes/intelligence.ts

@@ -27,8 +27,8 @@ router.get('/brands', async (req: Request, res: Response) => {
         array_agg(DISTINCT d.state) FILTER (WHERE d.state IS NOT NULL) as states,
         COUNT(DISTINCT d.id) as store_count,
         COUNT(DISTINCT sp.id) as sku_count,
-        ROUND(AVG(sp.price_rec)::numeric, 2) FILTER (WHERE sp.price_rec > 0) as avg_price_rec,
-        ROUND(AVG(sp.price_med)::numeric, 2) FILTER (WHERE sp.price_med > 0) as avg_price_med
+        ROUND(AVG(sp.price_rec) FILTER (WHERE sp.price_rec > 0)::numeric, 2) as avg_price_rec,
+        ROUND(AVG(sp.price_med) FILTER (WHERE sp.price_med > 0)::numeric, 2) as avg_price_med
       FROM store_products sp
       JOIN dispensaries d ON sp.dispensary_id = d.id
       WHERE sp.brand_name_raw IS NOT NULL AND sp.brand_name_raw != ''
@@ -154,10 +154,9 @@ router.get('/pricing', async (req: Request, res: Response) => {
       SELECT
         sp.category_raw as category,
         ROUND(AVG(sp.price_rec)::numeric, 2) as avg_price,
-        MIN(sp.price_rec) FILTER (WHERE sp.price_rec > 0) as min_price,
+        MIN(sp.price_rec) as min_price,
         MAX(sp.price_rec) as max_price,
-        ROUND(PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY sp.price_rec)::numeric, 2)
-          FILTER (WHERE sp.price_rec > 0) as median_price,
+        ROUND(PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY sp.price_rec)::numeric, 2) as median_price,
         COUNT(*) as product_count
       FROM store_products sp
       WHERE sp.category_raw IS NOT NULL AND sp.price_rec > 0
@@ -169,7 +168,7 @@ router.get('/pricing', async (req: Request, res: Response) => {
       SELECT
         d.state,
         ROUND(AVG(sp.price_rec)::numeric, 2) as avg_price,
-        MIN(sp.price_rec) FILTER (WHERE sp.price_rec > 0) as min_price,
+        MIN(sp.price_rec) as min_price,
         MAX(sp.price_rec) as max_price,
         COUNT(DISTINCT sp.id) as product_count
       FROM store_products sp