Add skill-manager skill (migrated from skill-creator) with deploy action

- Skill content moved from ~/.agents/skills/skill-creator, renamed to skill-manager
- New deploy CLI action: installs any skill via absolute-path symlinks (or copies)
  into $HOME/.agents/skills, $HOME/.claude/skills and $HOME/.cline/skills
- Taskfile + shell module wrappers (task deploy / cli:deploy)
- SKILL.md: deploy docs, origin-repository/origin-path metadata

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

scripts/Taskfile.yml

@@ -0,0 +1,50 @@
+# https://taskfile.dev
+
+version: "3"
+
+includes:
+  base: ./.scripts/base/Taskfile.yml
+  cli: ./.scripts/cli/Taskfile.yml
+  validator: ./.scripts/validator/Taskfile.yml
+
+tasks:
+  default:
+    cmds:
+      - task --list-all
+    silent: true
+
+  build:
+    desc: Compile TypeScript source to dist/
+    cmds:
+      - task: cli:build
+    silent: true
+
+  validate:
+    desc: |
+      Validate a skill directory against the agentskills.io spec.
+      Usage: task validate -- --skill-dir="/absolute/path/to/skill"
+    cmds:
+      - task: cli:validate
+        vars:
+          CLI_ARGS: "{{ .CLI_ARGS }}"
+    silent: true
+
+  scaffold:
+    desc: |
+      Scaffold a new skill directory from the built-in template.
+      Usage: task scaffold -- --skill-name="my-skill" [--output-dir="/path/to/.agents/skills"]
+    cmds:
+      - task: cli:scaffold
+        vars:
+          CLI_ARGS: "{{ .CLI_ARGS }}"
+    silent: true
+
+  deploy:
+    desc: |
+      Deploy a skill into $HOME/.agents/skills, $HOME/.claude/skills and $HOME/.cline/skills (absolute paths).
+      Usage: task deploy -- --skill-dir="/absolute/path/to/skill" [--mode=symlink|copy] [--force]
+    cmds:
+      - task: cli:deploy
+        vars:
+          CLI_ARGS: "{{ .CLI_ARGS }}"
+    silent: true