feat(install): symlink myclaude to ~/.local/bin, make uninstall, docs

- Makefile: uv sync or venv pip install -e, then ln -sf to ~/.local/bin/myclaude
- Add scripts/rm_user_local_myclaude.py for safe unlink on make uninstall
- README: install path, shell completion guarded by command -v
- Track uv.lock for reproducible uv sync

Made-with: Cursor

Makefile

@@ -1,15 +1,30 @@
 ROOT_DIR := $(shell pwd)
+VENV_MYCLAUDE := $(ROOT_DIR)/.venv/bin/myclaude
+USER_LOCAL_MYCLAUDE := $(HOME)/.local/bin/myclaude
 
-.PHONY: help install
+.PHONY: help install uninstall _symlink-myclaude
 
 help:
 	@echo "Usage: make [target]"
 	@echo ""
-	@echo "  install    Editable pip install of myclaude (uses uv when available)"
+	@echo "  install     Sync venv (uv or pip), symlink $(USER_LOCAL_MYCLAUDE) -> .venv/bin/myclaude"
+	@echo "  uninstall   Remove $(USER_LOCAL_MYCLAUDE) if it is a symlink to this repo"
 
 install:
-	@if command -v uv >/dev/null 2>&1; then \
-		uv pip install -e "$(ROOT_DIR)"; \
+	@cd "$(ROOT_DIR)" && \
+	if command -v uv >/dev/null 2>&1; then \
+		uv sync; \
 	else \
-		python3 -m pip install -e "$(ROOT_DIR)"; \
+		test -x .venv/bin/pip || python3 -m venv .venv; \
+		.venv/bin/pip install -e .; \
 	fi
+	@$(MAKE) _symlink-myclaude
+
+_symlink-myclaude:
+	@test -x "$(VENV_MYCLAUDE)" || { echo "error: missing $(VENV_MYCLAUDE)"; exit 1; }
+	@mkdir -p "$(HOME)/.local/bin"
+	@ln -sf "$(VENV_MYCLAUDE)" "$(USER_LOCAL_MYCLAUDE)"
+	@echo "Linked $(USER_LOCAL_MYCLAUDE) -> $(VENV_MYCLAUDE)"
+
+uninstall:
+	@ROOT_DIR="$(ROOT_DIR)" python3 "$(ROOT_DIR)/scripts/rm_user_local_myclaude.py"