Eb and skills (#152)

* fix: improve date filter UX with partial dates and Apply button (GNU-18)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: enhance banking settings with connection handling and integrity checks

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

supabase/migrations/20260330120000_add_last_integrity_check_at.sql

@@ -0,0 +1,11 @@
+-- Add last_integrity_check_at column for document integrity verification cron
+-- Tracks when each document was last verified, allowing the cron to prioritize
+-- unchecked or least-recently-checked documents.
+
+ALTER TABLE public.document_attachments
+  ADD COLUMN last_integrity_check_at timestamptz;
+
+-- Index for efficient ordering in the verification cron (nulls first = unchecked prioritized)
+CREATE INDEX idx_document_attachments_integrity_check
+  ON public.document_attachments (last_integrity_check_at ASC NULLS FIRST)
+  WHERE is_current_version = true;