feat(fusion_clock): Publish & Notify range + portal Schedule fold-in [A6-A7]

Generalise post_week into fclk_publish_range/fclk_email_posted_range +
planner Publish… panel + publish_range endpoint. Fold the /my/clock/schedule
controller+template+css from fusion_planning into fusion_clock (native
schedule only, role colour); inline Schedule nav across all portal pages.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

fusion_clock/controllers/__init__.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 from . import portal_clock
+from . import portal_schedule
 from . import clock_api
 from . import clock_kiosk
 from . import clock_nfc_kiosk