🔎 Persist admin table filters across HTMX pagination and partial refresh

Goal

Ensure search text, “show inactive” toggles, tag filters, and sort/page context stay consistent across HTMX swaps, pagination clicks, and reloads.

Why Now?

1. Current filtering is split between client-side DOM filtering and HTMX server responses.
2. Pagination or refresh can reset user-applied filters.
3. The resulting behavior feels inconsistent and causes repeated manual re-filtering.

User Stories

US-1: Durable filtering

As an Admin
I want my table filters to persist while navigating pages
So that I can keep working in a stable filtered view

Acceptance Criteria:

Given I apply search and inactive filters on a table
When I paginate or refresh the partial
Then the same filter state remains applied
And visible row counts remain consistent with the active filter

US-2: Shareable filtered state

As an Admin
I want filter state encoded in URL query parameters
So that I can bookmark/share a specific view

Acceptance Criteria:

Given I modify filters
When the URL updates
Then filter parameters are namespaced per table
And opening that URL restores the same filtered state

Scope

• Centralize table filter state in one client-side source of truth
• Synchronize state with pagination_controls.html URL generation
• Rehydrate and reapply filters after HTMX content swaps
• Add visible status text for filtered row counts

Definition of Done

• No filter loss across pagination or partial reload
• URL state round-trips accurately
• Behavior is consistent for servers/tools/resources/prompts/gateways tables
• Accessibility status updates are present for filter result changes