feat: add everything-claude-code ECC bundle (.claude/commands/add-new-install-target.md)

.claude/commands/add-new-install-target.md

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+---
+name: add-new-install-target
+description: Workflow command scaffold for add-new-install-target in everything-claude-code.
+allowed_tools: ["Bash", "Read", "Write", "Grep", "Glob"]
+---
+
+# /add-new-install-target
+
+Use this workflow when working on **add-new-install-target** in `everything-claude-code`.
+
+## Goal
+
+Adds support for a new install target (e.g., Gemini, CodeBuddy) so ECC can be installed on a new platform or IDE.
+
+## Common Files
+
+- `manifests/install-modules.json`
+- `schemas/ecc-install-config.schema.json`
+- `schemas/install-modules.schema.json`
+- `scripts/lib/install-manifests.js`
+- `scripts/lib/install-targets/{target}-project.js`
+- `scripts/lib/install-targets/registry.js`
+
+## Suggested Sequence
+
+1. Understand the current state and failure mode before editing.
+2. Make the smallest coherent change that satisfies the workflow goal.
+3. Run the most relevant verification for touched files.
+4. Summarize what changed and what still needs review.
+
+## Typical Commit Signals
+
+- Create a new install target script (e.g., scripts/lib/install-targets/{target}-project.js, .{target}/install.sh, .{target}/install.js)
+- Add documentation for the new target (e.g., .{target}/README.md, .{target}/README.zh-CN.md, .{target}/GEMINI.md)
+- Update manifests/install-modules.json to register the new target
+- Update schemas/ecc-install-config.schema.json and schemas/install-modules.schema.json for schema validation
+- Update scripts/lib/install-manifests.js and scripts/lib/install-targets/registry.js to handle the new target
+
+## Notes
+
+- Treat this as a scaffold, not a hard-coded script.
+- Update the command if the workflow evolves materially.