Replace sx_call() with render_to_sx() across all services

Python no longer generates s-expression strings. All SX rendering now
goes through render_to_sx() which builds AST from native Python values
and evaluates via async_eval_to_sx() — no SX string literals in Python.

- Add render_to_sx()/render_to_html() infrastructure in shared/sx/helpers.py
- Add (abort status msg) IO primitive in shared/sx/primitives_io.py
- Convert all 9 services: ~650 sx_call() invocations replaced
- Convert shared helpers (root_header_sx, full_page_sx, etc.) to async
- Fix likes service import bug (likes.models → models)

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

blog/bp/blog/routes.py

@@ -235,7 +235,7 @@ def register(url_prefix, title):
         from shared.sx.page import get_template_context
         from sx.sx_components import render_new_post_page, render_editor_panel
         tctx = await get_template_context()
-        tctx["editor_html"] = render_editor_panel(save_error="Invalid JSON in editor content.")
+        tctx["editor_html"] = await render_editor_panel(save_error="Invalid JSON in editor content.")
         html = await render_new_post_page(tctx)
         return await make_response(html, 400)
 
@@ -244,7 +244,7 @@ def register(url_prefix, title):
         from shared.sx.page import get_template_context
         from sx.sx_components import render_new_post_page, render_editor_panel
         tctx = await get_template_context()
-        tctx["editor_html"] = render_editor_panel(save_error=reason)
+        tctx["editor_html"] = await render_editor_panel(save_error=reason)
         html = await render_new_post_page(tctx)
         return await make_response(html, 400)
 
@@ -291,7 +291,7 @@ def register(url_prefix, title):
         from shared.sx.page import get_template_context
         from sx.sx_components import render_new_post_page, render_editor_panel
         tctx = await get_template_context()
-        tctx["editor_html"] = render_editor_panel(save_error="Invalid JSON in editor content.", is_page=True)
+        tctx["editor_html"] = await render_editor_panel(save_error="Invalid JSON in editor content.", is_page=True)
         tctx["is_page"] = True
         html = await render_new_post_page(tctx)
         return await make_response(html, 400)
@@ -301,7 +301,7 @@ def register(url_prefix, title):
         from shared.sx.page import get_template_context
         from sx.sx_components import render_new_post_page, render_editor_panel
         tctx = await get_template_context()
-        tctx["editor_html"] = render_editor_panel(save_error=reason, is_page=True)
+        tctx["editor_html"] = await render_editor_panel(save_error=reason, is_page=True)
         tctx["is_page"] = True
         html = await render_new_post_page(tctx)
         return await make_response(html, 400)

blog/bp/menu_items/routes.py

@@ -17,10 +17,10 @@ from shared.sx.helpers import sx_response
 def register():
     bp = Blueprint("menu_items", __name__, url_prefix='/settings/menu_items')
 
-    def get_menu_items_nav_oob_sync(menu_items):
+    async def get_menu_items_nav_oob_async(menu_items):
         """Helper to generate OOB update for root nav menu items"""
         from sx.sx_components import render_menu_items_nav_oob
-        return render_menu_items_nav_oob(menu_items)
+        return await render_menu_items_nav_oob(menu_items)
 
     @bp.get("/new/")
     @require_admin
@@ -51,8 +51,8 @@ def register():
             # Get updated list and nav OOB
             menu_items = await get_all_menu_items(g.s)
             from sx.sx_components import render_menu_items_list
-            html = render_menu_items_list(menu_items)
-            nav_oob = get_menu_items_nav_oob_sync(menu_items)
+            html = await render_menu_items_list(menu_items)
+            nav_oob = await get_menu_items_nav_oob_async(menu_items)
             return sx_response(html + nav_oob)
 
         except MenuItemError as e:
@@ -91,8 +91,8 @@ def register():
             # Get updated list and nav OOB
             menu_items = await get_all_menu_items(g.s)
             from sx.sx_components import render_menu_items_list
-            html = render_menu_items_list(menu_items)
-            nav_oob = get_menu_items_nav_oob_sync(menu_items)
+            html = await render_menu_items_list(menu_items)
+            nav_oob = await get_menu_items_nav_oob_async(menu_items)
             return sx_response(html + nav_oob)
 
         except MenuItemError as e:
@@ -112,8 +112,8 @@ def register():
         # Get updated list and nav OOB
         menu_items = await get_all_menu_items(g.s)
         from sx.sx_components import render_menu_items_list
-        html = render_menu_items_list(menu_items)
-        nav_oob = get_menu_items_nav_oob_sync(menu_items)
+        html = await render_menu_items_list(menu_items)
+        nav_oob = await get_menu_items_nav_oob_async(menu_items)
         return sx_response(html + nav_oob)
 
     @bp.get("/pages/search/")
@@ -128,7 +128,7 @@ def register():
         has_more = (page * per_page) < total
 
         from sx.sx_components import render_page_search_results
-        return sx_response(render_page_search_results(pages, query, page, has_more))
+        return sx_response(await render_page_search_results(pages, query, page, has_more))
 
     @bp.post("/reorder/")
     @require_admin
@@ -153,8 +153,8 @@ def register():
         # Get updated list and nav OOB
         menu_items = await get_all_menu_items(g.s)
         from sx.sx_components import render_menu_items_list
-        html = render_menu_items_list(menu_items)
-        nav_oob = get_menu_items_nav_oob_sync(menu_items)
+        html = await render_menu_items_list(menu_items)
+        nav_oob = await get_menu_items_nav_oob_async(menu_items)
         return sx_response(html + nav_oob)
 
     return bp

blog/bp/post/admin/routes.py

@@ -90,7 +90,7 @@ def register():
     features = result.get("features", {})
 
     from sx.sx_components import render_features_panel
-    html = render_features_panel(
+    html = await render_features_panel(
         features, post,
         sumup_configured=result.get("sumup_configured", False),
         sumup_merchant_code=result.get("sumup_merchant_code") or "",
@@ -129,7 +129,7 @@ def register():
 
     features = result.get("features", {})
     from sx.sx_components import render_features_panel
-    html = render_features_panel(
+    html = await render_features_panel(
         features, post,
         sumup_configured=result.get("sumup_configured", False),
         sumup_merchant_code=result.get("sumup_merchant_code") or "",
@@ -259,8 +259,8 @@ def register():
     from sx.sx_components import render_associated_entries, render_nav_entries_oob
 
     post = g.post_data["post"]
-    admin_list = render_associated_entries(all_calendars, associated_entry_ids, post["slug"])
-    nav_entries_html = render_nav_entries_oob(associated_entries, calendars, post)
+    admin_list = await render_associated_entries(all_calendars, associated_entry_ids, post["slug"])
+    nav_entries_html = await render_nav_entries_oob(associated_entries, calendars, post)
 
     return sx_response(admin_list + nav_entries_html)
 
@@ -436,7 +436,7 @@ def register():
     page_markets = await _fetch_page_markets(post_id)
 
     from sx.sx_components import render_markets_panel
-    return sx_response(render_markets_panel(page_markets, post))
+    return sx_response(await render_markets_panel(page_markets, post))
 
   @bp.post("/markets/new/")
   @require_admin
@@ -462,7 +462,7 @@ def register():
     page_markets = await _fetch_page_markets(post_id)
 
     from sx.sx_components import render_markets_panel
-    return sx_response(render_markets_panel(page_markets, post))
+    return sx_response(await render_markets_panel(page_markets, post))
 
   @bp.delete("/markets/<market_slug>/")
   @require_admin
@@ -482,6 +482,6 @@ def register():
     page_markets = await _fetch_page_markets(post_id)
 
     from sx.sx_components import render_markets_panel
-    return sx_response(render_markets_panel(page_markets, post))
+    return sx_response(await render_markets_panel(page_markets, post))
 
   return bp

blog/bp/post/routes.py

@@ -125,7 +125,7 @@ def register():
 
       # Get post_id from g.post_data
       if not g.user:
-          return sx_response(render_like_toggle_button(slug, False, like_url), status=403)
+          return sx_response(await render_like_toggle_button(slug, False, like_url), status=403)
 
       post_id = g.post_data["post"]["id"]
       user_id = g.user.id
@@ -135,7 +135,7 @@ def register():
       })
       liked = result["liked"]
 
-      return sx_response(render_like_toggle_button(slug, liked, like_url))
+      return sx_response(await render_like_toggle_button(slug, liked, like_url))
 
   @bp.get("/w/<widget_domain>/")
   async def widget_paginate(slug: str, widget_domain: str):

blog/bp/snippets/routes.py

@@ -47,7 +47,7 @@ def register():
 
         snippets = await _visible_snippets(g.s)
         from sx.sx_components import render_snippets_list
-        return sx_response(render_snippets_list(snippets, is_admin))
+        return sx_response(await render_snippets_list(snippets, is_admin))
 
     @bp.patch("/<int:snippet_id>/visibility/")
     @require_login
@@ -71,6 +71,6 @@ def register():
 
         snippets = await _visible_snippets(g.s)
         from sx.sx_components import render_snippets_list
-        return sx_response(render_snippets_list(snippets, True))
+        return sx_response(await render_snippets_list(snippets, True))
 
     return bp