feat: restructure market app with per-market URL scoping

- URL structure changes from /<route> to /<market_slug>/<route>
- Root / shows markets listing page
- app.py: url_value_preprocessor, url_defaults, hydrate_market (events app pattern)
- Browse queries (db_nav, db_products_nocounts, db_products_counts) accept market_id
- _productInfo reads g.market.id to scope all queries
- save_nav accepts market_id, sets on new NavTop rows
- API save_nav passes g.market.id
- Scraper default URLs point to /suma-market/ on port 8001

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scrape/persist_api/capture_listing.py

@@ -11,7 +11,7 @@ async def capture_listing(
     total_pages: int
 ):
     
-    sync_url = os.getenv("CAPTURE_LISTING_URL", "http://localhost:8000/market/api/products/listing/")
+    sync_url = os.getenv("CAPTURE_LISTING_URL", "http://localhost:8001/suma-market/api/products/listing/")
 
     async with httpx.AsyncClient(timeout=httpx.Timeout(20.0, connect=10.0)) as client:
         _d = {

scrape/persist_api/save_nav.py

@@ -8,7 +8,7 @@ from typing import Dict
 async def save_nav(
     nav: Dict,
 ):
-    sync_url = os.getenv("SAVE_NAV_URL", "http://localhost:8000/market/api/products/nav/")
+    sync_url = os.getenv("SAVE_NAV_URL", "http://localhost:8001/suma-market/api/products/nav/")
 
     async with httpx.AsyncClient(timeout=httpx.Timeout(20.0, connect=10.0)) as client:
         resp = await client.post(sync_url, json=nav)

scrape/persist_api/upsert_product.py

@@ -21,7 +21,7 @@ async def upsert_product(
         d["slug"] = slug
 
     # Where to post; override via env if needed
-    sync_url = os.getenv("PRODUCT_SYNC_URL", "http://localhost:8000/market/api/products/sync/")
+    sync_url = os.getenv("PRODUCT_SYNC_URL", "http://localhost:8001/suma-market/api/products/sync/")