Add the two PR commands that touch content and the local worktree:
- `pr diff <n>` fetches the raw diff from the `.diff` endpoint (forcing a
text response, which the JSON-defaulting client would otherwise discard),
truncates at 4000 chars with separate `truncated`/`original_length` fields
and a prepended `--full` suggestion; `--full` returns the raw diff.
- `pr checkout <n>` reads the PR head branch from the PR fetch and fetches
`refs/pull/{n}/head` from origin (uniform for same-repo and fork PRs, ADR
0011), three-cased on local branch state so re-checkout is idempotent and
divergent local commits fail with `GIT_ERROR` rather than being discarded.
Introduces the `GIT_ERROR` mapping (`runGit`) carrying git's first stderr
line plus a remediation help line, and widens the PR 404 classifier so a
`.diff` path still resolves to `PR_NOT_FOUND`.
`pr create` takes --title (required), --body/--body-file, --base, --head,
--assignee, --reviewer, repeatable name-resolved --label, and --milestone.
An omitted --head defaults to the current local branch; an omitted --base to
the repository's default branch. Before creating, an existing open PR for the
same base/head pair short-circuits to `pull_request: { number, url, already:
true }` rather than opening a duplicate; only an open PR does, since a closed
one's branches are free to be proposed again.
`pr comment <n>` posts through the shared issue-comment endpoint and returns
the created comment as `comment: { number, author, created, body }` (ADR 0008),
reporting a 404 as PR_NOT_FOUND since the caller asked about a pull request.
That comment block is now built in one place (src/comment.ts) for both issue
and pr comment, as ADR 0008 requires them to stay identical.
Tracer bullet for gitea-axi: runnable npm package on axi-sdk-js with
gitea-js as the sole HTTP layer, ESM on Node 20+.
- issue list with --state/--limit, default fields, count line from
X-Total-Count, type=issues guard, explicit empty state, and next-step
suggestions
- repo context detection from the git origin remote (SSH/scp/HTTPS),
tea credential discovery with the three-way login-matching split, and
-R/--repo and --login overrides (flag > env > auto)
- token retrieval via tea login helper get: tea's login list JSON
carries no token (ADR 0001 amended)
- full AxiError classification table with path-based 404 split, TOON
errors on stdout, exit codes 0/1/2
- test mode (GITEA_AXI_API_URL/TOKEN/REPO) suppressing subprocesses,
fixture server, and vitest suites driving the CLI seam (50 tests)
