feat: rework update/support contracts, fix SDK retry body replay, and…

… refresh docs for v1.0.0

- Split reported components into images vs. files, add update strategies and per-stack resolution, and a shared action/reason vocabulary for update answers
- Add models.ParseEnvelope[T] and MsgLogTypeWait to match the server's response contract; fix SDK retries silently resending an exhausted request body
- Update examples/report-errors to continue issues via -issue-id and render streamed answers live; refresh README/API.md/doc.go for the license key flow