Root cause: buildContextSnapshot (the system prompt used when a note is
active — the common case) did NOT instruct the AI to use [[wikilinks]].
Only buildAgentSystemPrompt (the fallback when no context) had it.
So the AI almost never produced clickable wikilinks.
Fix: Add the [[Note Title]] wikilink instruction to
buildContextSnapshot's preamble.
The click handler chain was already correct (verified with new
integration tests): MarkdownContent → AiMessage → AiPanel →
notes.handleNavigateWikilink → findWikilinkTarget → handleSelectNote.
Tests added:
- Unit: buildContextSnapshot includes wikilink instruction
- Integration: clicking wikilinks in AiPanel calls onOpenNote
- Playwright: wikilink renders, click opens note in tab
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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