ENG-2320 Use core Obsidian components for the node type template setting

[jsmorabito]

https://entire.io/gh/DiscourseGraphs/discourse-graph/trails/23

Reviewer brief

• Review focus: DropdownComponent and ExtraButtonComponent are mounted once in a useEffect and then updated from props in separate effects, so React re-renders don't rebuild or duplicate them.
• Risk or follow-up: Obsidian's searchable "No file selected" file picker is only available to plugins through declarative settings (1.13+). Migrating all settings to declarative settings is tracked in PRO-221.

Verification

• pnpm ci:validate passes.
• Manual testing in Obsidian and before/after screenshots are still outstanding.

Loom video

• TODO: Loom walkthrough with before/after screenshots.

Scope check

• Ran $scope-check against ENG-2320 and the final diff.
• Scope beyond Done When: None.

Standards check

• Ran $dg-pr-adherence-check against the final diff and PR metadata.

Local delegated full review

• Ran a comprehensive review of the entire final diff in a subagent with a fresh context. Use $dg-delegated-full-review when no other full-review workflow is available.

🤖 Generated with Claude Code

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1 Skipped Deployment

Project	Deployment	Actions	Updated
discourse-graph	Skipped		Sep 24, 2026 7:02pm UTC

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[linear-code]

ENG-2320