Add attribution service contract

[haasonsaas]

Summary\n- add the initial attribution.v1 service contract for persisted deal attribution reports and export\n- generate Go, Python, and TypeScript artifacts plus package exports\n- extend proto CI smoke coverage to include the new package\n\n## Validation\n- buf lint --path proto/attribution/v1/attribution.proto\n- buf generate --path proto/attribution/v1/attribution.proto --timeout 10m\n- go test ./... -count=1\n- actionlint .github/workflows/ci.yml\n- npm ci && npm run check:package

[cursor]

PR Summary

Low Risk
Low risk: this PR primarily adds a new protobuf API surface and generated client artifacts, with only small updates to CI and package exports.

Overview
Adds a new attribution.v1 protobuf service contract for generating, retrieving, and exporting persisted attribution reports, including schemas for deal context, trace/usage touchpoints, and agent/team ROI rollups.

Checks in regenerated Go/Connect, Python, and TypeScript artifacts for the new API, updates package.json exports to publish the TS module, adds RPC descriptions to descriptions.yaml, and extends CI’s Python wheel smoke test to import AttributionReport.

^{Reviewed by Cursor Bugbot for commit 292636f. Bugbot is set up for automated code reviews on this repo. Configure here.}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is ON, but it could not run because the branch was deleted or merged before autofix could start.}

^{Reviewed by Cursor Bugbot for commit 292636f. Configure here.}

[cursor]

Package exports entry breaks alphabetical ordering convention

Low Severity

The ./attribution/v1/attribution_pb export is placed between agents and approvals, but alphabetically approvals (a-p-p) sorts before attribution (a-t-t). Every other entry in the exports map follows strict alphabetical order. Placing attribution after approvals and before audit would maintain the convention and reduce future merge-conflict risk.

 

^{Reviewed by Cursor Bugbot for commit 292636f. Configure here.}