feat(ce-polish-beta): human-in-the-loop polish phase between /ce:review and merge (#568)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

plugins/compound-engineering/skills/ce-polish-beta/references/dev-server-rails.md

@@ -0,0 +1,50 @@
+# Rails dev-server recipe (auto-detect fallback)
+
+Loaded when `detect-project-type.sh` returns `rails` and there is no `.claude/launch.json` to consult.
+
+## Signature
+
+- `bin/dev` exists and is executable
+- `Gemfile` exists
+
+## Start command
+
+```bash
+bin/dev
+```
+
+`bin/dev` is the Rails 7+ convention for "start everything" (web + assets watcher + optional workers). It is a one-liner script that invokes `foreman start -f Procfile.dev` under the hood, so `Procfile.dev` is the canonical place to read the *actual* command if `bin/dev` is missing or non-executable.
+
+## Port
+
+Default: `3000`. Overrides follow the cascade in `references/dev-server-detection.md`:
+1. `Procfile.dev` `web:` line may contain `-p <n>`
+2. `config/puma.rb` may bind to a non-default port
+3. `.env` / `.env.development` `PORT=<n>`
+4. `AGENTS.md` / `CLAUDE.md` project instructions
+
+## Stub generation for `.claude/launch.json`
+
+When the user accepts "Save this as `.claude/launch.json`?", emit the Rails stub from `launch-json-schema.md`:
+
+```json
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Rails dev",
+      "runtimeExecutable": "bin/dev",
+      "runtimeArgs": [],
+      "port": 3000
+    }
+  ]
+}
+```
+
+If the cascade resolved a non-3000 port, substitute it in the stub's `port` field before writing.
+
+## Common gotchas
+
+- **Bundler path:** some machines require `bundle exec bin/dev`. If `bin/dev` fails with a load-path error, fall back to `bundle exec bin/dev`.
+- **Foreman vs overmind:** `Procfile` vs `Procfile.dev` often both exist. Rails' `bin/dev` resolves to `Procfile.dev`; if the project uses `overmind` explicitly, prefer `overmind start -f Procfile.dev` (see `dev-server-procfile.md`).
+- **SSL dev server:** `rails s` with `--ssl` changes the URL scheme. Polish's reachability probe uses `http://`; users with SSL dev servers should set `port` explicitly in `.claude/launch.json` and note the scheme in the checklist.