fix(release): repair version drafting and align workflow naming

[aryasaatvik]

Summary

The nightly/manual prepare release workflow failed because Tegami resolved every samva specifier to the private root package named samva, rewriting examples and publishable peers to ^0.0.0 and breaking bun install. This renames the private root and aligns the workflow files, jobs, and steps to the platform repo's lowercase convention.

Changes

• Rename the private root package samva → @samva/integrations and ignore it in the Tegami release graph. bun run tegami version now completes and writes the publish lock.
• Rename tegami-pr.yml → release-plan.yml and tegami-pr-comment.yml → release-plan-comment.yml.
• Lowercase every workflow, job, and step name; rename the preview artifact to release-plan.
• Update the workflow reference in docs/releases.md.

Review notes

• Reproduced the original failure locally (samva@^0.0.0 failed to resolve after Tegami rewrote the samva specifiers) and confirmed the fix reaches Package versions updated → Publish lock written.
• Verified bun install, bun run test (89), bun run release:packages:check, bun run validate:agent-plugin, format:check, lint, and Bun.YAML.parse over all five workflow files.
• Direct push to main was rejected by the repository ruleset requiring a pull request, so this lands as a PR.
• After merge, the prepare release workflow (nightly 13:00 UTC or manual dispatch) will draft the Version Packages PR. release-plan-comment.yml triggers on the release plan workflow name, which the renamed workflow now sets.

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge; the previous lockfile inconsistency is fixed and no new actionable failures remain.

Findings

1.  Root lockfile name is stale ▶

Summary

The PR repairs release drafting by giving the private repository root a distinct scoped package name and excluding it from Tegami’s release graph. It also standardizes GitHub Actions naming and aligns the release-plan producer, artifact, consumer, and documentation.

• Renames the private root package to @samva/workspace.
• Keeps the root lockfile metadata and Tegami ignore entry synchronized with that name.
• Renames and normalizes release-plan workflows, jobs, steps, and artifacts.
• Updates release documentation for the renamed workflows.
• The previous stale-lockfile finding is fully fixed because package.json and bun.lock now both identify the root workspace as @samva/workspace.

Diagram

sequenceDiagram
    participant PR as Pull request
    participant Plan as release plan workflow
    participant Artifact as release-plan artifact
    participant Comment as release plan comment workflow
    participant GH as Pull request comments

    PR->>Plan: Trigger on pull_request
    Plan->>Plan: Generate release-plan.md
    Plan->>Artifact: Upload release-plan
    Artifact-->>Comment: Download after successful workflow_run
    Comment->>GH: Post generated release plan

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