v0.3.3

• New: Grok Build execute-plan and subagent sessions now nest under their root parent, with expandable child counts, root-level sidebar totals, source-project recovery for worktrees, flat Starred/search results, and cascading Trash deletion
• Credits: Grok subagent nesting was inspired by PR #3. Thanks to @syanbo for mapping Grok's parent metadata and worktree behavior; the final implementation was independently rebuilt on the current codebase