chore: rename create-plugin skill to plugin-create, add project settings

Renames plugins/kyberforge/skills/create-plugin/ to plugin-create/ to match
the directory-based skill name Claude Code uses for slash commands. Adds
.claude/settings.json with kyberforge plugin enabled. Gitignores
.claude/settings.local.json (machine-local MCP permissions).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kyberforge/skills/plugin-create/assets/plugin-template/agents/PLUGIN_NAME.agent.md

@@ -0,0 +1,13 @@
+---
+name: PLUGIN_NAME
+description: PLUGIN_DESCRIPTION
+tools:
+  - read_file
+  - list_directory
+---
+
+Replace this with your agent's system prompt and instructions.
+
+This file is loaded by **GitHub Copilot CLI**. The `tools:` frontmatter field declares
+which tools the agent can use — add or remove tools as needed.
+For Claude Code, see `PLUGIN_NAME.md`.

plugins/kyberforge/skills/plugin-create/assets/plugin-template/agents/PLUGIN_NAME.md

@@ -0,0 +1,8 @@
+---
+name: PLUGIN_NAME
+description: PLUGIN_DESCRIPTION
+---
+
+Replace this with your agent's system prompt and instructions.
+
+This file is loaded by **Claude Code**. For GitHub Copilot CLI, see `PLUGIN_NAME.agent.md`.

plugins/kyberforge/skills/plugin-create/assets/plugin-template/agents/README.md

@@ -0,0 +1,13 @@
+# agents/
+
+Agent definitions for this plugin. Each agent needs two files — one per tool:
+
+| File | Tool | Notes |
+|---|---|---|
+| `<name>.md` | Claude Code | Frontmatter: `name`, `description`. No `tools:` field. |
+| `<name>.agent.md` | GitHub Copilot CLI | Frontmatter: `name`, `description`, `tools:` (array of permitted tool names). |
+
+The two files share the same system prompt body. Keep them in sync.
+
+Rename `PLUGIN_NAME.md` and `PLUGIN_NAME.agent.md` to your agent's name (kebab-case).
+Add additional agent pairs as needed — one pair per agent.