Summary

Adds full Azure DevOps pull request review as a first-class platform alongside GitHub and GitLab, following the same provider pattern used throughout the codebase.

What's included

New platform support

• Parse dev.azure.com and legacy visualstudio.com PR URLs
• URL-encoded project/repo names decoded automatically
• Case-insensitive pullrequest segment

Diff fetching (two-stage fallback)

1. Try git diff <baseSha>..<headSha> locally (fast path — works when repo is cloned)
2. Fall back to ADO REST API: fetches changed file list from PR iteration changes, then fetches old/new file content at base/head SHAs and builds a git-style unified diff using a self-contained LCS diff engine (no external deps)

Review submission

• General comments → POST /threads via ADO REST API
• Inline file comments → POST /threads with threadContext position info
• Approve → PUT /reviewers/{userId} with vote: 10; user ID resolved from _apis/connectionData
• All az rest calls use --resource 499b84ac-1321-427f-aa17-267ca6975798 to get an ADO-scoped token (ARM token is rejected by ADO APIs)

UI

• New AzureDevOpsIcon component added
• Review destination button shows ADO icon for ADO PRs
• Fixed missing @plannotator/ui/config export in packages/ui/package.json (the config/ directory existed but was not declared in exports)

New types

• AzureDevOpsPRRef, AzureDevOpsPRMetadata in pr-provider.ts
• Platform union extended: github | gitlab | azuredevops
• All label helpers (getPlatformLabel, getMRLabel, getMRNumberLabel, getDisplayRepo, getCliName, getCliInstallUrl) updated
• New types re-exported from packages/server/pr.ts

Tests

22 new tests in packages/shared/pr-azuredevops.test.ts:

• URL parsing: dev.azure.com, visualstudio.com, URL-encoded names, case-insensitive, large IDs
• GitHub/GitLab regression coverage
• buildFilePatch: add/edit/delete/rename, identical files, no trailing newline, hunk merging, hunk splitting
• computeHunks: identical, add, delete, replace

All 170 tests pass (148 pre-existing + 22 new).

Prerequisites (user-side)

brew install azure-cli
az extension add --name azure-devops
az login

Usage

/plannotator-review https://dev.azure.com/{org}/{project}/_git/{repo}/pullrequest/{id}
/plannotator-review https://{org}.visualstudio.com/{project}/_git/{repo}/pullrequest/{id}

Test plan

• URL parser covers both ADO URL formats, encoded names, large IDs
• GitHub and GitLab URL parsing unaffected (regression tests)
• Diff engine: add/edit/delete/rename files, hunk merging/splitting
• 170/170 tests pass
• Full build succeeds (review editor + hook + binary)
• Tested against real ADO PR (zuelligpharmadevops/eZRxPlus — PR #155857): metadata fetch, diff via API, comment posting, approval vote