feat: initialize market app with browsing, product, and scraping code

Split from coop monolith. Includes:
- Market/browse/product blueprints
- Product sync API
- Suma scraping pipeline
- Templates for market, browse, and product views
- Dockerfile and CI workflow for independent deployment

scrape/product/helpers/text.py

@@ -0,0 +1,16 @@
+
+from __future__ import annotations
+import re
+from utils import normalize_text
+from config import config
+
+def clean_title(t: str) -> str:
+    t = normalize_text(t)
+    t = re.sub(r":\s*$", "", t)
+    return t
+
+def is_blacklisted_heading(title: str) -> bool:
+    """Return True if heading should be skipped based on config blacklist."""
+    bl = (config().get("blacklist") or {}).get("product-details") or []
+    low = (title or "").strip().lower()
+    return any(low == (s or "").strip().lower() for s in bl)