feat(fs): add a search render-intent card for grep and glob results

grep and glob returned only model-facing text; the structured matches/paths
never reached the client. Add a card:'search' result view with a kind
discriminant ('matches' grouped by file for grep, 'paths' for glob), projected
through each tool's output.presentationMeta and read back in presentResult. The
projections re-apply the same inline cap and per-line budget as the render text
and report total + truncated, so a UI never presents a capped page as complete.
A UI without the search card falls back to content; the TUI is unchanged. The
web consumer is a follow-up.

packages/core/tools/src/index.ts

@@ -82,6 +82,11 @@ export type {
   GenericResultView,
   TerminalResultView,
   DiffResultView,
+  SearchResultView,
+  SearchMatchesResultView,
+  SearchPathsResultView,
+  SearchFileMatches,
+  SearchLineMatch,
 } from './presentation.ts'
 
 declare module 'cordis' {