0.4.0

Added

• max_tokens per provider: Configurable max output tokens on each provider entry. Sent with every completion request for gateways that require an explicit limit.
• Deterministic link resolution: Wikilinks in change plans are case-corrected before the preview modal. Unresolved links surface as warnings in the modal and console.
• Deterministic lint: Instant structural lint (broken links, missing frontmatter, orphans, dead index links, duplicate filenames, stale sources) runs before the AI lint call.
• Source provenance: Generated wiki pages include sources YAML frontmatter with raw file path, content hash, and ingest date for traceability.
• Enhanced preview modal: Update operations show a colored line-diff (+/-). Link resolution stats and unresolved-link warnings are displayed in the hero section.
• Rollback/undo: New Undo last ContextOS change command reverts the most recently applied change set. History is persisted in .contextos/history/ (last 20 entries).

Changed

• Connection test: Now sends a real completion ("ping"), verifies non-empty content, and returns structured diagnostics (status, finish_reason, content preview) instead of a simple pass/fail.
• Git execution: Replaced child_process.exec with spawn (argument arrays, no shell interpolation) for safer handling of remote URLs and commit messages.

Fixed

• Better error messages on truncation (includes content length) and missing content (includes finish_reason).