release: v1.4.0

chore: remove completed execution mode gate plan docs

feat: parallel agent execution with plan-based mode selection (#11)

fix: cross-platform Node.js rewrite of hooks and scripts (#8)

feat: v1.2 hooks foundation — lifecycle middleware and orchestration enhancements (#7)

fix: reduce parallel dispatch defaults to mitigate API throttling (#6)

docs: reorganize documentation for consumer-first experience (#5)

chore: remove internal plans and research docs

docs: update version badge to v1.1.1

docs: update CHANGELOG and bump version to v1.1.1

fix: remove extension settings prompts from install

fix: remove broken custom theme from extension config

Merge pull request #4 from josstei/release/v1.1.0

merge: resolve conflicts with main

docs: update CHANGELOG for v1.1.0 release