Add Unity Pipeline package support

Client/PackageLocal/com.unity.pipeline@0.4.0-exp.1/package.json

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+{"name":"com.unity.pipeline","displayName":"Unity Pipeline","version":"0.4.0-exp.1","unity":"6000.0","category":"Pipeline","description":"This package allows application (cli, agent or other) to connect to the editor or a running game and execute commands (build, run_tests, play/pause, hotreload)","keywords":["pipeline","connected","authoring","hotreload"],"dependencies":{"com.unity.test-framework":"1.1.33","com.unity.modules.jsonserialize":"1.0.0","com.unity.nuget.newtonsoft-json":"3.0.2","com.unity.nuget.mono-cecil":"1.11.6","com.unity.modules.uielements":"1.0.0","com.unity.modules.screencapture":"1.0.0"},"samples":[{"displayName":"Hot Reload Examples","description":"In-place [HotReload] editing and override-file ([HotReloadOverrideMethod]) hot reload examples.","path":"Samples~/HotReload"}],"repository":{"revision":"418cc10b7deb7b60fa3d6839730af6401a5bbe35","type":"git","url":"https://github.cds.internal.unity3d.com/unity/com.unity.pipeline.git"},"documentationUrl":"https://docs.unity3d.com/Packages/com.unity.pipeline@0.4/manual/index.html","_upm":{"changelog":"- Persist the pipeline server auth token across editor domain reloads so long-lived clients (MCP/IDE) no longer get `401` after a recompile. (CLI-412)\n- `capture_game_view`/`capture_scene_view` with `save_path` now return a path-only result (no base64) so agent tool results stay small; pass `include_inline_image=true` for the old behavior. Add `max_resolution` to cap the inline image size. (AUTHAPI-8)\n- Object-reference string handles now accept authoring-root-relative asset paths (e.g. `Materials/Floor.mat`, not just `Assets/Materials/Floor.mat`): a relative string with a file extension is treated as an asset path and normalized under the authoring root, and a failed lookup now reports every strategy tried instead of a misleading hierarchy-path-only error. (AUTHAPI-9)"}}