✨ feat(docs): add templates and Chinese documentation structure

✨ feat(commands): add /done and /start-phase session lifecycle commands

docs: restore content and update installation guide

feat(cli): release global CLI tool 'spec-agents'

feat(modules): add agent-browser module for web automation

feat(core): enable progressive disclosure for intent modules

feat(modules): add conversion copywriting module and intent

feat(core): enforce intent recognition protocol in agents

feat(modules): add scenario-specific interaction modules

init