Migrate catalog card source to the v2 search surface

[habdelra]

Moves catalog card source off the deprecated @context.prerenderedCardSearchComponent and onto the v2 @context.searchResultsComponent (<SearchResults>) surface, via the @context search codemod (from the boxel repo) plus hand-fixes for the shapes it can't transform mechanically.

Codemod-migrated

• components/grid.gts, blog-app/blog-post.gts, and the reader-view / theme-picker searches in blog-app/blog-app.gts — the v1 query is adapted through searchEntryWireQueryFromQuery, <:response> becomes {{#each results.entries}}, and rows are addressed by id.

Hand-migrated (shapes the codemod leaves alone)

• components/card-list.gts — yields each row to a :meta block; the dynamic @format binds through the query's htmlQuery field.
• catalog-app/components/grid.gts — hands each row to <CardWithHydration> and branched on result count; now renders entries / loading skeleton / no-results explicitly.
• catalog-app/components/category-filter-group.gts — the query is a per-sphere {{#each}} block value, adapted inline via a searchQueryForSphere helper.
• catalog-app/components/tag-filter-group.gts — the result list is wrapped in markup rather than a bare {{#each}}.
• blog-app/blog-app.gts — the library-posts search hands its list to wrapping markup; its <CardList> :meta consumer now reads the row id.

Consumer

• catalog-app/components/card-with-hydration.gts — now takes a RenderableSearchEntryLike and addresses the row by id.

Where a search yields to children or has a skeleton/empty state, the list renders once results.entries is present (stale entries persist across a live re-fetch) and the loading affordance shows only on the empty initial load.

Verification

• Every changed .gts transpiles through the realm's own gjsToPlaceholderJS + babel lowering.
• glint type-checks the v2 usage clean (run against the experiments-realm project, which resolves the shared @cardstack/* + base types).
• Formatted with the repo's prettier + ember-template-tag config.

Part of the unified-search Phase 1 codemod sweep across the first-party realms.

[Copilot]

Pull request overview

Migrates catalog/blog UI components from the deprecated @context.prerenderedCardSearchComponent to the v2 @context.searchResultsComponent (<SearchResults>) surface by adapting v1 Query inputs into v2 SearchEntryWireQuery and updating templates to iterate results.entries keyed by id.

Changes:

• Replaced prerendered search component usage with v2 search results yielding (as |results|) and results.entries.
• Added searchEntryWireQueryFromQuery adapters (plus realms and htmlQuery format bindings where needed).
• Updated consumers to treat rows as RenderableSearchEntryLike and use id instead of url.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
components/grid.gts	Switches to v2 search results component and iterates results.entries.
components/card-list.gts	Switches to v2 search; yields RenderableSearchEntryLike to :meta; binds format via htmlQuery.
catalog-app/components/tag-filter-group.gts	Switches tag pills to v2 search results and uses id addressing.
catalog-app/components/grid.gts	Switches listing grid to v2 search results with explicit entries/loading/empty rendering.
catalog-app/components/category-filter-group.gts	Switches per-sphere category lists to v2 search results with inline query adaptation.
catalog-app/components/card-with-hydration.gts	Updates hydration wrapper to accept RenderableSearchEntryLike and address rows by id.
blog-app/blog-post.gts	Switches theme picker search to v2 search results and uses id.
blog-app/blog-app.gts	Switches multiple searches (picks/latest/theme/library) to v2 search results and updates :meta consumer to use id.

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