v0.4.0

Added

• Added active-stack runtime context injection with prompt @file references, synthetic tool:read activation, explicit activation provenance, and TUI feedback for effective context changes.
• Added Context Tree edit-tool feedback: ct_edit_request and ct_patch now provide custom TUI rendering plus agent-readable patch summaries with line counts and focused diff previews.

Changed

• Clarified session:start, agent:start, and tool:* hook timing in schema documentation and reduced self-context child-scope agent:start noise in favor of path-aware tool hooks.
• Reset active runtime state on session_start / reload so removed or changed CONTEXT.json rules cannot remain stale in the active stack.
• Removed agent:start injections from src/CONTEXT.json; source-level self-context now activates from path-aware file reads/edits instead of every prompt.
• Improved collapsed ct_patch TUI output so it shows a small diff preview plus an explicit expand hint instead of only saying that expansion is possible.

Fixed

• Fixed ct_patch support for creating missing authorized files with one empty-oldText patch.