Fix nested raw! sexp errors and missing container nav in market pages

- Fix invalid nested (raw! a (raw! b)) patterns in market and events
  sexp_components — concatenate HTML strings in Python, pass single
  var to (raw! h) instead
- Add container_nav_html fetch to market inject_post context processor
  so page-scoped market pages show calendar/market nav links
- Add qs_filter to base_context for sexp filter URL building

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

market/app.py

@@ -199,7 +199,24 @@ def create_app() -> "Quart":
         post_data = getattr(g, "post_data", None)
         if not post_data:
             return {}
-        return {**post_data}
+        ctx = {**post_data}
+        # Fetch container nav fragments (calendar + market links for this page)
+        post_dict = post_data.get("post") or {}
+        db_post_id = post_dict.get("id")
+        post_slug = post_dict.get("slug", "")
+        if db_post_id:
+            from shared.infrastructure.fragments import fetch_fragments
+            nav_params = {
+                "container_type": "page",
+                "container_id": str(db_post_id),
+                "post_slug": post_slug,
+            }
+            events_nav, market_nav = await fetch_fragments([
+                ("events", "container-nav", nav_params),
+                ("market", "container-nav", nav_params),
+            ], required=False)
+            ctx["container_nav_html"] = events_nav + market_nav
+        return ctx
 
     # --- oEmbed endpoint ---
     @app.get("/oembed")

market/sexp_components.py

@@ -1387,10 +1387,10 @@ async def render_market_home_page(ctx: dict) -> str:
     content = _market_landing_content(post)
 
     hdr = root_header_html(ctx)
+    child = _post_header_html(ctx) + _market_header_html(ctx)
     hdr += sexp(
-        '(div :id "root-header-child" :class "w-full" (raw! ph (raw! mh)))',
-        ph=_post_header_html(ctx),
-        mh=_market_header_html(ctx),
+        '(div :id "root-header-child" :class "w-full" (raw! h))',
+        h=child,
     )
     menu = _mobile_nav_panel_html(ctx)
     return full_page(ctx, header_rows_html=hdr, content_html=content, menu_html=menu)
@@ -1434,10 +1434,10 @@ async def render_browse_page(ctx: dict) -> str:
     content = f'<div class="grid grid-cols-1 sm:grid-cols-3 md:grid-cols-6 gap-3">{cards_html}</div><div class="pb-8"></div>'
 
     hdr = root_header_html(ctx)
+    child = _post_header_html(ctx) + _market_header_html(ctx)
     hdr += sexp(
-        '(div :id "root-header-child" :class "w-full" (raw! ph (raw! mh)))',
-        ph=_post_header_html(ctx),
-        mh=_market_header_html(ctx),
+        '(div :id "root-header-child" :class "w-full" (raw! h))',
+        h=child,
     )
     menu = _mobile_nav_panel_html(ctx)
     filter_html = _mobile_filter_summary_html(ctx)
@@ -1478,11 +1478,10 @@ async def render_product_page(ctx: dict, d: dict) -> str:
     meta = _product_meta_html(d, ctx)
 
     hdr = root_header_html(ctx)
+    child = _post_header_html(ctx) + _market_header_html(ctx) + _product_header_html(ctx, d)
     hdr += sexp(
-        '(div :id "root-header-child" :class "w-full" (raw! ph (raw! mh (raw! prh))))',
-        ph=_post_header_html(ctx),
-        mh=_market_header_html(ctx),
-        prh=_product_header_html(ctx, d),
+        '(div :id "root-header-child" :class "w-full" (raw! h))',
+        h=child,
     )
     return full_page(ctx, header_rows_html=hdr, content_html=content, meta_html=meta)
 
@@ -1507,12 +1506,11 @@ async def render_product_admin_page(ctx: dict, d: dict) -> str:
     content = _product_detail_html(d, ctx)
 
     hdr = root_header_html(ctx)
+    child = (_post_header_html(ctx) + _market_header_html(ctx)
+             + _product_header_html(ctx, d) + _product_admin_header_html(ctx, d))
     hdr += sexp(
-        '(div :id "root-header-child" :class "w-full" (raw! ph (raw! mh (raw! prh (raw! pah)))))',
-        ph=_post_header_html(ctx),
-        mh=_market_header_html(ctx),
-        prh=_product_header_html(ctx, d),
-        pah=_product_admin_header_html(ctx, d),
+        '(div :id "root-header-child" :class "w-full" (raw! h))',
+        h=child,
     )
     return full_page(ctx, header_rows_html=hdr, content_html=content)
 
@@ -1551,11 +1549,10 @@ async def render_market_admin_page(ctx: dict) -> str:
     content = "market admin"
 
     hdr = root_header_html(ctx)
+    child = _post_header_html(ctx) + _market_header_html(ctx) + _market_admin_header_html(ctx)
     hdr += sexp(
-        '(div :id "root-header-child" :class "w-full" (raw! ph (raw! mh (raw! mah))))',
-        ph=_post_header_html(ctx),
-        mh=_market_header_html(ctx),
-        mah=_market_admin_header_html(ctx),
+        '(div :id "root-header-child" :class "w-full" (raw! h))',
+        h=child,
     )
     return full_page(ctx, header_rows_html=hdr, content_html=content)