Rebrand sexp → sx across web platform (173 files)

Rename all sexp directories, files, identifiers, and references to sx.
artdag/ excluded (separate media processing DSL).

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

events/bp/fragments/routes.py

@@ -1,6 +1,6 @@
 """Events app fragment endpoints.
 
-Exposes sexp fragments at ``/internal/fragments/<type>`` for consumption
+Exposes sx fragments at ``/internal/fragments/<type>`` for consumption
 by other coop apps via the fragment client.
 """
 
@@ -31,9 +31,9 @@ def register():
     async def get_fragment(fragment_type: str):
         handler = _handlers.get(fragment_type)
         if handler is None:
-            return Response("", status=200, content_type="text/sexp")
+            return Response("", status=200, content_type="text/sx")
         result = await handler()
-        ct = "text/html" if fragment_type in _html_types else "text/sexp"
+        ct = "text/html" if fragment_type in _html_types else "text/sx"
         return Response(result, status=200, content_type=ct)
 
     # --- container-nav fragment: calendar entries + calendar links -----------
@@ -41,7 +41,7 @@ def register():
     async def _container_nav_handler():
         from quart import current_app
         from shared.infrastructure.urls import events_url
-        from shared.sexp.helpers import sexp_call
+        from shared.sx.helpers import sx_call
 
         container_type = request.args.get("container_type", "page")
         container_id = int(request.args.get("container_id", 0))
@@ -69,11 +69,11 @@ def register():
                 date_str = entry.start_at.strftime("%b %d, %Y at %H:%M")
                 if entry.end_at:
                     date_str += f" – {entry.end_at.strftime('%H:%M')}"
-                parts.append(sexp_call("calendar-entry-nav",
+                parts.append(sx_call("calendar-entry-nav",
                     href=events_url(entry_path), name=entry.name,
                     date_str=date_str, nav_class=nav_class))
             if has_more and paginate_url_base:
-                parts.append(sexp_call("htmx-sentinel",
+                parts.append(sx_call("htmx-sentinel",
                     id=f"entries-load-sentinel-{page}",
                     hx_get=f"{paginate_url_base}?page={page + 1}",
                     hx_trigger="intersect once",
@@ -87,7 +87,7 @@ def register():
             )
             for cal in calendars:
                 href = events_url(f"/{post_slug}/{cal.slug}/")
-                parts.append(sexp_call("calendar-link-nav",
+                parts.append(sx_call("calendar-link-nav",
                     href=href, name=cal.name, nav_class=nav_class))
 
         if not parts:
@@ -123,7 +123,7 @@ def register():
     async def _account_nav_item_handler():
         from quart import current_app
         from shared.infrastructure.urls import account_url
-        from shared.sexp.helpers import sexp_call
+        from shared.sx.helpers import sx_call
 
         styles = current_app.jinja_env.globals.get("styles", {})
         nav_class = styles.get("nav_button", "")
@@ -135,7 +135,7 @@ def register():
         bookings_url = account_url("/bookings/")
         parts = []
         for href, label in [(tickets_url, "tickets"), (bookings_url, "bookings")]:
-            parts.append(sexp_call("nav-group-link",
+            parts.append(sx_call("nav-group-link",
                 href=href, hx_select=hx_select, nav_class=nav_class, label=label))
         return "(<> " + " ".join(parts) + ")"
 
@@ -169,13 +169,13 @@ def register():
 
     async def _link_card_handler():
         from shared.infrastructure.urls import events_url
-        from shared.sexp.helpers import sexp_call
+        from shared.sx.helpers import sx_call
 
         slug = request.args.get("slug", "")
         keys_raw = request.args.get("keys", "")
 
-        def _event_link_card_sexp(post, cal_names: str) -> str:
-            return sexp_call("link-card",
+        def _event_link_card_sx(post, cal_names: str) -> str:
+            return sx_call("link-card",
                              title=post.title, image=post.feature_image,
                              subtitle=cal_names,
                              link=events_url(f"/{post.slug}"))
@@ -193,7 +193,7 @@ def register():
                         g.s, "page", post.id,
                     )
                     cal_names = ", ".join(c.name for c in calendars) if calendars else ""
-                    parts.append(_event_link_card_sexp(post, cal_names))
+                    parts.append(_event_link_card_sx(post, cal_names))
             return "\n".join(parts)
 
         # Single mode
@@ -207,7 +207,7 @@ def register():
             g.s, "page", post.id,
         )
         cal_names = ", ".join(c.name for c in calendars) if calendars else ""
-        return _event_link_card_sexp(post, cal_names)
+        return _event_link_card_sx(post, cal_names)
 
     _handlers["link-card"] = _link_card_handler