fix: drop bogus Incidents.delete + add StatusPages.reorder_layout

[caballeto]

Summary

Fixes two surface-parity gaps surfaced by the monorepo's tests/surfaces/parity/ suite.

1. Drop Incidents.delete() — endpoint never existed

The underlying API endpoint DELETE /api/v1/incidents/{id} is not implemented on the API server. Calling client.incidents.delete(id) would always return a 404 — the method has never produced a successful response. It was a leftover from earlier API experimentation.

All other surfaces (sdk-js, mcp-server, cli, terraform-provider) correctly omit it, so the parity check (rightly) flagged sdk-python as out of sync.

Decision: remove from sdk-python rather than implement the endpoint. Incidents are auto-resolved by the pipeline or manually resolved via incidents.resolve(...). Permanent deletion is not part of the product surface.

This is technically a breaking change to the public API, but with no real consumers it's safe to ship as a 0.x patch (captured in the next release version bump).

2. Add StatusPages.reorder_layout(id, body)

The API endpoint PUT /api/v1/status-pages/{id}/layout/reorder exists and sdk-js already exposes statusPages.reorderLayout(...). sdk-python was missing the method, creating a real parity gap.

This PR:

• Adds reorder_layout(id, body: RequestBody[ReorderPageLayoutRequest]) -> None to the StatusPages root class.
• Re-exports ReorderPageLayoutRequest from devhelm and devhelm.types.
• Adds a status-pages.reorder-layout op to the surface-test harness (tests/run_sdk.py).
• Bumps uv.lock to track the published devhelm 0.2.0.

Test plan

• pytest tests/ — 707 passed
• mypy src/ — clean (23 files)
• ruff format --check / ruff check — clean
• make test-surface SURFACE=sdk_python against test API — 174 passed, 1 skipped
• After merge: cut devhelm 0.2.1 release; once on PyPI, sister PR on mcp-server bumps the pin and adds the reorder_status_page_layout tool.

Companion PRs

• mono — #260 — fixes 3 stale parity-test issues (introspect override anticipates the new reorder_status_page_layout MCP tool).
• mcp-server — coming once devhelm 0.2.1 is on PyPI: adds the reorder_status_page_layout MCP tool.

Made with Cursor