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/extractors/labels.py

@@ -0,0 +1,41 @@
+
+from __future__ import annotations
+from typing import Dict, List
+from bs4 import BeautifulSoup
+from utils import normalize_text
+from ..registry import extractor
+
+@extractor
+def ex_labels(soup: BeautifulSoup, url: str) -> Dict:
+    """
+    From:
+      <ul class="cdz-product-labels">
+        <li class="label-item new"><div class="label-content">NEW</div></li>
+      </ul>
+    Returns "labels": lower-cased union of class hints and visible text.
+    """
+    root = soup.select_one("ul.cdz-product-labels")
+    if not root:
+        return {}
+    items: List[str] = []
+    texts: List[str] = []
+
+    for li in root.select("li.label-item"):
+        for c in (li.get("class") or []):
+            c = (c or "").strip()
+            if c and c.lower() != "label-item" and c not in items:
+                items.append(c)
+        txt = normalize_text(li.get_text())
+        if txt and txt not in texts:
+            texts.append(txt)
+
+    if not items and not texts:
+        return {}
+    union = []
+    seen = set()
+    for s in items + [t.lower() for t in texts]:
+        key = (s or "").strip().lower()
+        if key and key not in seen:
+            seen.add(key)
+            union.append(key)
+    return {"labels": union}