# dd-3009225: Soft-archive standalone repo after monorepo migration

## Summary

Remove most content from `github/copilot-sdk-java` after completing the migration to the `java/` directory of the monorepo [`github/copilot-sdk`](https://github.com/github/copilot-sdk). The standalone repo is kept only for `gh-pages` documentation hosting.

## What changed

### Deleted (1,017 files, ~87,500 lines removed)

All source code, build configuration, CI/CD workflows, issue templates, scripts, and development tooling have been removed:

- **Source & tests** — entire `src/` tree (production code + test code)
- **Build system** — `pom.xml`, Maven wrapper (`mvnw`, `.mvn/`), checkstyle/spotbugs configs
- **CI/CD** — all `.github/workflows/*.yml`, `.github/actions/`, `.github/scripts/`
- **Codegen** — `scripts/codegen/` (java.ts, package.json, etc.)
- **Repo metadata** — `CHANGELOG.md`, `CONTRIBUTING.md`, `CODE_OF_CONDUCT.md`, `LICENSE`, `SECURITY.md`, `SUPPORT.md`, `CODEOWNERS`
- **IDE / agent configs** — `.vscode/`, `.claude/`, `.github/agents/`, `.github/prompts/`, `.github/skills/`, `instructions/`
- **Docs & ADRs** — `docs/` directory
- **Misc** — `jbang-example.java`, `dependabot.yml`, coverage badges, release config

### Modified

- **`README.md`** — replaced full SDK documentation with a redirect notice pointing to the monorepo at `github/copilot-sdk/tree/main/java`.

### Kept (not touched)

- `.github/workflows/` entries that were already removed in prior commit `00449e9dd` (schedule removal)
- `gh-pages` branch content (served separately)

## Why

The Java SDK now lives in `github/copilot-sdk` under `java/`. Keeping a full copy in the standalone repo creates confusion about which is canonical and risks divergent development. This change makes the standalone repo a thin redirect while preserving git history and `gh-pages` documentation.

Author: edburns