Merge dev into main

[TrueNine]

Summary

• merge the current dev branch changes into main
• ship the recent CLI, SDK, GUI, docs, and release workflow updates together
• include dependency maintenance and CI/release pipeline fixes accumulated on dev

Highlights

• refine plugin output generation, config handling, cleanup behavior, and execution planning across the CLI and SDK
• improve GitHub Actions workflows for PRs, releases, GUI checks, native package publishing, and dependency automation
• update docs, quick guides, and GUI validation behavior to match the new config and pipeline model
• include the latest release workflow fix for platform-specific N-API binary size validation

Validation

• existing branch history from dev
• no additional local changes in this PR creation step