UI: Resources page — nav entry, type filter, search + Create, JSON edit modal (save/delete/history/diff), recent queries

[smunini]

Summary

Add a new Resources item to the left navigation and build out the Resource Search page behind it. This is the primary read/write workspace for browsing, searching, creating, and editing FHIR resources in the hfs web UI (crates/ui).

Today the left nav (crates/ui/templates/layouts/base.html) carries nav-item--soon stubs for Search / Resource Editor / History & Versions. This issue promotes that surface into a working Resources page and wires the pieces that already exist elsewhere into it.

Scope

1. Left nav entry — "Resources"

• Add a new left-menu item with icon + label "Resources" under the Work section (i18n key, matching the existing nav-item pattern; pick/add an appropriate icon under templates/icons/).
• Clicking it navigates to the Resource Search page.

2. Resource Types filter menu

• On the Resources page, show the Resource Types filter menu (the filter rail).
• Reuse / build on the filter UI from Wire up the Resource list filter UI (drive from /metadata + per-type $summary=count) #251 (drive from /metadata + per-type $summary=count).

3. Resource Search page

• New page with a search area and results list.
• "Create new" button to create a new resource of the selected type.
• Natural Language search should work — wire up the AI-assisted / NL search from Natural Language / AI-assisted search: enable on back end and front end #255 (back end + front end).
• Visual Builder for search — NOT in this issue. Leave it as a clearly-marked TODO / future item (placeholder is fine). Only NL search is expected to function now.

4. Edit Resource popup / shadowbox

• Clicking a result opens an Edit Resource modal (shadowbox).
• For now, JSON text editor only — no schema-driven / Guided form here (that's the separate resource-editor track, Research & design: schema-driven FHIR Resource Editor prototype (FHIR Schema + extension editing) #264 / PR feat(ui): schema-driven resource editor — a real Guided form (#264) #277 — out of scope for this issue).
• The following must work from the editor:
  • Save (create/update the resource)
  • Delete
  • Version history — show the resource's version history
  • Version diff — integrate the diff tool built in Research: htmx-friendly diff rendering for the History & Versions view #236 / PR feat(ui): History & Versions diff — the prototype (#236) #278 so users can compare versions inline.

5. Recent queries

• Integrate Recent / saved queries (User settings: maintain a list of saved FHIR queries by resource type, sortable by last access #234 / PR feat(ui): saved FHIR queries per resource type, sorted by last access #241) into the Resources page so prior searches are surfaced and re-runnable.

Explicitly NOT in this issue (future TODOs)

• Visual query Builder (only Natural Language search for now).
• Schema-driven / Guided resource editor in the Edit modal (JSON text editor only for now; the Guided form lives in Research & design: schema-driven FHIR Resource Editor prototype (FHIR Schema + extension editing) #264 / PR feat(ui): schema-driven resource editor — a real Guided form (#264) #277).

Related

• Wire up the Resource list filter UI (drive from /metadata + per-type $summary=count) #251 — Resource list filter UI (Resource Types filter menu)
• Natural Language / AI-assisted search: enable on back end and front end #255 — Natural Language / AI-assisted search
• User settings: maintain a list of saved FHIR queries by resource type, sortable by last access #234 / PR feat(ui): saved FHIR queries per resource type, sorted by last access #241 — saved / recent FHIR queries
• Research: htmx-friendly diff rendering for the History & Versions view #236 / PR feat(ui): History & Versions diff — the prototype (#236) #278 — History & Versions diff tool (version diff)
• Research & design: schema-driven FHIR Resource Editor prototype (FHIR Schema + extension editing) #264 / PR feat(ui): schema-driven resource editor — a real Guided form (#264) #277 — schema-driven resource editor (out of scope here)