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

bp/browse/routes.py

@@ -0,0 +1,162 @@
+from __future__ import annotations
+
+
+from quart import (
+    g,
+    Blueprint,
+    abort,
+    render_template,
+    render_template_string,
+    make_response,
+    current_app,
+)
+from config import config
+from .services.nav import category_context, get_nav
+from .services.blacklist.category import is_category_blocked
+
+from .services import (
+  _hx_fragment_request,
+  _productInfo,
+  _vary,
+  _current_url_without_page,
+)
+
+from suma_browser.app.redis_cacher import cache_page
+from suma_browser.app.utils.htmx import is_htmx_request
+
+def register():
+  browse_bp = Blueprint("browse", __name__)
+
+  from .. import register_product
+  browse_bp.register_blueprint(
+    register_product(),
+  )
+
+  @browse_bp.get("/")
+  @cache_page(tag="browse")
+  async def home():
+      """
+      Market landing page.
+      Shows the Ghost CMS post with slug='market'.
+      """
+      from shared.internal_api import get as api_get
+
+      # Fetch the market post from coop internal API
+      p_data = await api_get("coop", "/internal/post/market")
+      if not p_data:
+          abort(404)
+
+      # Determine which template to use based on request type
+      if not is_htmx_request():
+          # Normal browser request: full page with layout
+          html = await render_template("_types/market/index.html", **p_data)
+      else:
+          # HTMX request: main panel + OOB elements
+          html = await render_template("_types/market/_oob_elements.html", **p_data)
+
+      return await make_response(html)
+
+  @browse_bp.get("/all/")
+  @cache_page(tag="browse")
+  async def browse_all():
+      """
+      Browse all products across all categories.
+      Renders full page or just product cards (HTMX pagination fragment).
+      """
+      nav = await get_nav(g.s)
+      ctx = {
+          "category_label": "All Products",
+          "top_slug": "all",
+          "sub_slug": None,
+      }
+
+      product_info = await _productInfo()
+      full_context = {**product_info, **ctx}
+
+      # Determine which template to use based on request type and pagination
+      if not is_htmx_request():
+          # Normal browser request: full page with layout
+          html = await render_template("_types/browse/index.html", **full_context)
+      elif product_info["page"] > 1:
+          # HTMX pagination: just product cards + sentinel
+          html = await render_template("_types/browse/_product_cards.html", **product_info)
+      else:
+          # HTMX navigation (page 1): main panel + OOB elements
+          html = await render_template("_types/browse/_oob_elements.html", **full_context)
+
+      resp = await make_response(html)
+      resp.headers["Hx-Push-Url"] = _current_url_without_page()
+      return _vary(resp)
+
+
+  @browse_bp.get("/<top_slug>/")
+  @cache_page(tag="browse")
+  async def browse_top(top_slug: str):
+      """
+      Browse by top-level category (e.g. /fruit).
+      404 if category not in allowed list or is blocked.
+      """
+      REVERSE_CATEGORY = {v: k for k, v in config()["categories"]["allow"].items()}
+      if top_slug not in REVERSE_CATEGORY:
+          abort(404)
+      if is_category_blocked(top_slug):
+          abort(404)
+
+      nav = await get_nav(g.s)
+      ctx = category_context(top_slug, None, nav)
+
+      product_info = await _productInfo(top_slug)
+      full_context = {**product_info, **ctx}
+
+      # Determine which template to use based on request type and pagination
+      if not is_htmx_request():
+          # Normal browser request: full page with layout
+          html = await render_template("_types/browse/index.html", **full_context)
+      elif product_info["page"] > 1:
+          # HTMX pagination: just product cards + sentinel
+          html = await render_template("_types/browse/_product_cards.html", **product_info)
+      else:
+          html = await render_template("_types/browse/_oob_elements.html", **full_context)
+
+      resp = await make_response(html)
+      resp.headers["Hx-Push-Url"] = _current_url_without_page()
+      return _vary(resp)
+
+
+  @browse_bp.get("/<top_slug>/<sub_slug>/")
+  @cache_page(tag="browse")
+  async def browse_sub(top_slug: str, sub_slug: str):
+      """
+      Browse by subcategory (e.g. /fruit/citrus).
+      404 if blocked or unknown.
+      """
+      REVERSE_CATEGORY = {v: k for k, v in config()["categories"]["allow"].items()}
+      if top_slug not in REVERSE_CATEGORY:
+          abort(404)
+      if is_category_blocked(top_slug, sub_slug):
+          abort(404)
+
+      nav = await get_nav(g.s)
+      ctx = category_context(top_slug, sub_slug, nav)
+
+      product_info = await _productInfo(top_slug, sub_slug)
+      full_context = {**product_info, **ctx}
+
+      # Determine which template to use based on request type and pagination
+      if not is_htmx_request():
+          # Normal browser request: full page with layout
+          html = await render_template("_types/browse/index.html", **full_context)
+      elif product_info["page"] > 1:
+          # HTMX pagination: just product cards + sentinel
+          html = await render_template("_types/browse/_product_cards.html", **product_info)
+      else:
+          # HTMX navigation (page 1): main panel + OOB elements
+          html = await render_template("_types/browse/_oob_elements.html", **full_context)
+
+      resp = await make_response(html)
+      resp.headers["Hx-Push-Url"] = _current_url_without_page()
+      return _vary(resp)
+
+
+  
+  return browse_bp