feat: add mybot CLI with update, chat, and Claude project config

- Click entrypoint: mybot update (make install / pip -e), mybot chat (claude in repo)
- Optional --dangerously-skip-permissions for Claude Code
- Makefile install; hatchling package layout
- .gitignore: venv, build artifacts, workspace (local symlinks)

Made-with: Cursor

.claude/skills/sync-global.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+# 同步 npx global skills 到 Claude Code
+
+SOURCE="$HOME/.agents/skills"
+TARGET="$HOME/.claude/skills"
+
+mkdir -p "$TARGET"
+
+for skill in "$SOURCE"/*; do
+    name=$(basename "$skill")
+    if [ -d "$skill" ] && [ -f "$skill/SKILL.md" ]; then
+        if [ ! -L "$TARGET/$name" ]; then
+            ln -sf "$skill" "$TARGET/$name"
+            echo "Linked: $name"
+        fi
+    fi
+done
+
+echo "Sync complete. Run /skills to see all."