feat: tangent - resource management via document entity

[maxy-shpfy]

Description

Adds support for attaching pipeline runs as resources in Tangent projects, alongside the existing pipeline attachment capability.

A new AddPipelineRunDialog allows users to browse and select a pipeline run from the RunSection, which required adding an onRunClick callback prop to both RunRow and RunSection to intercept row clicks without navigating away.

Resource metadata (type, workarea identity, URL) is now stored in a structured extraData field on project resources rather than relying on entity/entityId fields. A new resourceExtraData.ts module handles serialization and parsing of this data for both local_pipeline and pipeline_run resource types.

The "Add a pipeline" button in ResourcesWindowContent has been replaced with a split AddResourceButton that exposes both "Add a pipeline" and "Add pipeline run" options via a dropdown. The resources panel layout has also been redesigned: the collapsible ContentBlock sections are replaced with a flat list of ResourceRow items, each showing an icon, title, and description. Instructions are now rendered as a ResourceRow as well.

Screenshots (if applicable)

Screen Recording 2026-09-18 at 12.38.10 PM.mov (uploaded via Graphite)

Test Instructions

1. Open a Tangent project and navigate to the Resources panel.
2. Click "Add a pipeline" and verify a pipeline can be attached as before.
3. Open the dropdown chevron next to "Add a pipeline" and select "Add pipeline run".
4. Select a run from the list and confirm it appears in the resources panel with a Play icon and "Pipeline run" description.
5. Click an attached pipeline run resource and verify it opens correctly in the workarea.
6. Remove an attached resource and confirm it is deleted.
7. Verify the Instructions row renders correctly with and without existing instructions.

Additional Comments

The extraData field on project resources must be supported by the API. The payload: {} field is included as a required placeholder per the existing API contract.

[github-actions]

🎩 Preview

A preview build has been created at: 09-17-feat_tangent_-_resource_management_via_document_entity/ff8a2a5

[maxy-shpfy]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• feat: create a project from a tile in the grid #2735 : 3 dependent PRs (#2736 , #2737 , #2738 )
• feat: projects dashboard #2734
• chore: tangent - annotate runs submission to projectid #2758
• fix: tangent - proper debug sequence system prompt #2757
• fix: tangent - quick run button from mini content window #2744
• fix: tangent - remote agent send delta immediately #2743
• fix: tangent - mint proper authorization with tangent #2742
• feat: tangent - debug in tangent sequence #2741
• chore: add autolayout tool #2740
• feat: tangent - resource management via document entity #2733 👈 (View in Graphite)
• feat: tangent - interactive chips in tangent chat #2732
• chore: save id stack to replay ids on reloads #2731
• refactor: tangent - migrate tangetproectcontext onto mobx #2730
• feat: tangent - keep track of open tabs while switching sessions inside project #2729
• feat: tangent - remote agent for runview and editor #2728
• refactor: tangent - structured workarea target #2727
• feat: tangent - embedded pipeline run view #2726
• feat: tangent - embedded pipeline editor #2725
• feat: tangent - dynamic workarea remote tools #2724
• feat: tangent - resources management in project view #2723
• feat: tangent project view page #2722
• feat: workspaces and projects service #2720
• chore: api client for workspaces and projects #2719
• master

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