Delete events sx_components.py — move all rendering to sxc/pages

Phase 7 of the zero-Python-rendering plan. All 100 rendering functions
move from events/sx/sx_components.py into events/sxc/pages/__init__.py.
Route handlers (15 files) import from sxc.pages instead.
load_service_components call moves into _load_events_page_files.

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

events/bp/slots/routes.py

@@ -110,20 +110,20 @@ def register():
 
         # Success → re-render the slots table
         slots = await svc_list_slots(g.s, g.calendar.id)
-        from sx.sx_components import render_slots_table
+        from sxc.pages import render_slots_table
         return sx_response(await render_slots_table(slots, g.calendar))
 
         
     @bp.get("/add")
     @require_admin
     async def add_form(**kwargs):
-        from sx.sx_components import render_slot_add_form
+        from sxc.pages import render_slot_add_form
         return sx_response(await render_slot_add_form(g.calendar))
 
     @bp.get("/add-button")
     @require_admin
     async def add_button(**kwargs):
-        from sx.sx_components import render_slot_add_button
+        from sxc.pages import render_slot_add_button
         return sx_response(await render_slot_add_button(g.calendar))
 
     return bp