fix: Fix SEO generator - lazy pool init, fallback queries

- Move pool initialization inside functions (lazy loading)
- Fix page_key parsing for state-XX format
- Add fallback query if mv_state_metrics doesn't exist

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

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

backend/src/services/seoGenerator.ts

@@ -6,8 +6,6 @@
  */
 
 import { getPool } from '../db/pool';
-
-const pool = getPool();
 import { ContentValidator } from '../utils/ContentValidator';
 
 interface SeoPage {
@@ -47,6 +45,7 @@ interface GenerationSpec {
  * Build generation spec based on page type
  */
 async function buildSeoGenerationSpec(page: SeoPage): Promise<GenerationSpec> {
+  const pool = getPool();
   const spec: GenerationSpec = {
     type: page.type,
     slug: page.slug,
@@ -54,12 +53,29 @@ async function buildSeoGenerationSpec(page: SeoPage): Promise<GenerationSpec> {
   };
 
   if (page.type === 'state') {
-    // Fetch state metrics
-    const stateCode = page.page_key.replace('states/', '').toUpperCase();
-    const metricsResult = await pool.query(`
-      SELECT store_count, total_products, unique_brands, state_name
-      FROM mv_state_metrics WHERE state = $1
-    `, [stateCode]);
+    // Fetch state metrics - page_key format is "state-az" or slug is "dispensaries-az"
+    const stateCode = (page.page_key.replace('state-', '') || page.slug.replace('dispensaries-', '')).toUpperCase();
+
+    // Try materialized view first, fall back to direct query
+    let metricsResult;
+    try {
+      metricsResult = await pool.query(`
+        SELECT store_count, total_products, unique_brands, state_name
+        FROM mv_state_metrics WHERE state = $1
+      `, [stateCode]);
+    } catch (e) {
+      // Materialized view doesn't exist, use direct query
+      metricsResult = await pool.query(`
+        SELECT
+          COUNT(DISTINCT d.id) as store_count,
+          COUNT(DISTINCT p.id) as total_products,
+          COUNT(DISTINCT p.brand_name) as unique_brands,
+          $1 as state_name
+        FROM dispensaries d
+        LEFT JOIN dutchie_products p ON p.dispensary_id = d.id
+        WHERE d.state = $1
+      `, [stateCode]);
+    }
 
     if (metricsResult.rows[0]) {
       spec.metrics = {
@@ -150,6 +166,8 @@ function generateSeoContent(spec: GenerationSpec): GeneratedSeoPayload {
  * Main generation pipeline
  */
 export async function generateSeoPageWithClaude(pageId: number): Promise<SeoPageContent> {
+  const pool = getPool();
+
   // 1. Load page
   const pageResult = await pool.query(
     'SELECT id, type, slug, page_key, primary_keyword FROM seo_pages WHERE id = $1',