[WPB-21287] put app metadata

[fisx]

Checklist

• Add a new entry in an appropriate subdirectory of changelog.d
• Read and follow the PR guidelines

[Copilot]

Pull request overview

Adds a new public Brig endpoint to update an existing team app’s “metadata” (app-facing profile fields + app store category/description), wiring it through AppSubsystem and AppStore down to Postgres, and covering it with an integration test.

Changes:

• Introduce PUT /teams/:tid/apps/:uid and a new request payload type PutApp.
• Add UpdateApp operations to AppSubsystem and AppStore, with a Postgres implementation.
• Add an integration test exercising the new endpoint and verifying updated fields via GET /teams/:tid/apps/:uid.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
services/brig/src/Brig/API/Public.hs	Wires the new put-app handler into Brig’s public API server.
libs/wire-api/src/Wire/API/Routes/Public/Brig.hs	Exposes the new put-app route in the public API surface.
libs/wire-api/src/Wire/API/App.hs	Adds PutApp request type + schema for partial app updates.
libs/wire-subsystems/src/Wire/AppSubsystem.hs	Adds UpdateApp effect to the App subsystem.
libs/wire-subsystems/src/Wire/AppSubsystem/Interpreter.hs	Implements updateAppImpl by updating app store + user store fields.
libs/wire-subsystems/src/Wire/AppStore.hs	Introduces StoredAppUpdate and AppStoreError, and adds UpdateApp to the store effect.
libs/wire-subsystems/src/Wire/AppStore/Postgres.hs	Implements UpdateApp against the apps table.
libs/wire-subsystems/test/unit/Wire/MockInterpreters/AppStore.hs	Extends the in-memory AppStore interpreter with an UpdateApp case (currently stubbed).
integration/test/API/Brig.hs	Adds a test helper to call the new PUT endpoint.
integration/test/Test/Apps.hs	Adds an integration test validating app metadata updates.
changelog.d/1-api-changes/WPB-21287-put-app-metadata	Documents the new public API endpoint.

Comments suppressed due to low confidence (1)

libs/wire-api/src/Wire/API/Routes/Public/Brig.hs:2143

• The route summary says "Update metadata of an existing app", but this endpoint updates only a subset of app fields (name/assets/accent/category/description) and does not update the metadata/picture fields returned by GetApp. Please clarify the summary/description to match the actual updatable fields to avoid misleading API consumers.

           ( Summary "Update metadata of an existing app"
               :> From 'V15

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