- db.rs: add get_issue_messages command (joins ai_conversations + ai_messages)
- tauriCommands.ts: fix updateIssueCmd to pass updates as nested object
(was spreading inline — Rust expects {issueId, updates}); fix addFiveWhyCmd
parameter names to match Rust (stepOrder, whyQuestion, answer, evidence);
add getIssueMessagesCmd and IssueMessage interface
- Dashboard: X button on each open issue row to close (mark resolved) inline
- Triage: restore conversation history from DB when revisiting existing issues;
detect close intent patterns and mark issue resolved + navigate home;
auto-save resolution step via addFiveWhyCmd when AI advances why level
- tests: add issueActions.test.ts covering IPC arg structure and close intent
