docs: resize demo GIF to 800x400

docs: resize demo GIF for GitHub (1200x600)

docs: increase demo GIF size (200%)

docs: add demo GIF to README

docs: remove contributor entry

docs: add Qwen Coder as contributor

chore: bump version to 0.1.1

docs: update README for mcpguard-cli npm package

chore: rename package to mcpguard-cli

test: mock keytar in config-parser.test.ts

ci: install libsecret dependency for keytar on Linux

fix: use ESM import for fs module instead of require

feat: initial release of mcpguard - The 1Password for AI Agents