Add daemon dashboard project selector

[ScriptedAlchemy]

Summary

• add daemon-wide /api/projects inventory and /api/projects/{project_id}/... routing for project-scoped dashboard APIs
• cache per-project dashboard state behind a runtime wrapper while preserving active /api/plugins compatibility
• add shell project selector plus SDK URL scoping for plugin, automation, and capabilities calls

Verification

• npm run test:node
• npm run build
• cargo test --test dashboard_api_test
• cargo test --test mcp_dashboard_tool_test tracedecay_dashboard_tool_starts_and_returns_url_and_serves_capabilities -- --exact
• cargo check
• npm run test:dom
• git diff --check

[changeset-bot]

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Latest commit: d05d290

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