…tributing docs (#1023)

Co-authored-by: Claude Sonnet 4.6 <[email protected]>

* feat(web): replace language param with path in symbol tools, make repo mandatory

- find_symbol_definitions and find_symbol_references now accept `path`
  (the file where the symbol was encountered) instead of `language`
- Language is derived internally via detectLanguageFromFilename
- `repo` is now required in both tool schemas
- Also fixes ambiguous extension overrides in languageDetection.ts

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* delete

* changelog

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Co-authored-by: Claude Sonnet 4.6 <[email protected]>

* feat: Add support for `topics` to Search Contexts

This commit updates Sourcebot to include support for using `topics` as
part of the Search Context definition.

As part of this:
* Updated `repoMetadataSchema` to store `topics` for `github` and
  `gitlab` host types
* Populate the topic list when compiling GitHub and Gitlab repos
* Updated schemas to support `includeTopics/excludeTopics`
* Expanded test coverage
* Updated Docs

* Replace some references to `GitLab` with `repository`

* One more replace

* Add CHANGELOG.md entry

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Co-authored-by: Gavin Williams <[email protected]>

…hread (#1031)

* feat(web): replace manual auto-scroll with useStickToBottom in chat thread

Replaces the custom scroll tracking implementation (manual scroll
listeners, scrollIntoView calls, isAutoScrollEnabled state) with the
useStickToBottom library already used in detailsCard. Fixes layout
regressions for sticky answer headers and chat box visibility.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* chore: update CHANGELOG for #1031

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* changelog

* feedabck

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Co-authored-by: Claude Sonnet 4.6 <[email protected]>

…1032)

* fix(web): don't include sources in grep tool when groupByRepo=true

When `groupByRepo=true`, the LLM only sees a repo-level summary and
never references individual files. Previously, all matched files were
still streamed to the client as sources, causing 1000+ individual
setSources() calls and cascading re-renders that froze the UI.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* chore: update CHANGELOG for #1032

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

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Co-authored-by: Claude Sonnet 4.6 <[email protected]>

…on thread creation (#1033)

* refactor(web): move chat storage keys to constants and clear search scope on thread creation

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* chore: update CHANGELOG for #1033

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* changelog

---------

Co-authored-by: Claude Sonnet 4.6 <[email protected]>

…es (#1035)

* fix(web): fix inaccurate scroll position when selecting chat references (SOU-724)

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

* chore: update CHANGELOG for #1035

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

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Co-authored-by: Claude Sonnet 4.6 <[email protected]>