v1.4.0

Changelog

• 31983dc ci: update Go version to 1.25 to match go.mod
• a65312d feat: add --account flag to CLI commands
• b65dd70 feat: add GetAccountsConfigPath for multi-account config
• ec2e362 feat: add Google Tasks OAuth scope
• 734476c feat: add Task CRUD methods
• 32aeddb feat: add TaskList CRUD methods
• 616d188 feat: add Tasks prompts (task_review, plan_tasks)
• 3089063 feat: add Tasks resources (today, upcoming, overdue)
• e47727f feat: add Tasks service with NewService and ListTaskLists
• ab38f65 feat: add account parameter to all non-auth tool handlers
• 6d832ea feat: add account registry for multi-account support
• ccd25bf feat: make auth tools account-aware, add accounts_list tool
• 5fdff12 feat: register Tasks tools and implement handlers
• 569ca64 fix: add mutex protection for concurrent map access
• e17c688 fix: correct README documentation issues
• 4c6974c fix: correct setup.md documentation issues
• 272101d fix: harden account alias handling against path traversal and races
• 3ac496f fix: resolve golangci-lint v2 findings
• c5f2c71 fix: update help text, nil slices, and extract shared token path logic
• 6e75371 fix: upgrade golangci-lint action to v7 for Go 1.25 support
• 3e8e4ab refactor: restructure Server for multi-account service resolution
• a0c8047 release: prepare v1.4.0