feat(sync): fetch and store GitLab issue links (bd-343o)

Add end-to-end support for GitLab issue link fetching:
- New GitLabIssueLink type + fetch_issue_links API client method
- Migration 029: add issue_links job type and watermark column
- issue_links.rs: bidirectional entity_reference storage with
  self-link skip, cross-project fallback, idempotent upsert
- Drain pipeline in orchestrator following mr_closes_issues pattern
- Display related issues in 'lore show issues' output
- --no-issue-links CLI flag with config, autocorrect, robot-docs
- 6 unit tests for storage logic

crates/lore-tui/src/lib.rs

@@ -5,7 +5,7 @@
 //! Built on FrankenTUI (Elm architecture): Model, update, view.
 //! The `lore` CLI spawns `lore-tui` via PATH lookup at runtime.
 
-use anyhow::Result;
+use anyhow::{Context, Result};
 
 // Phase 0 modules.
 pub mod clock; // Clock trait: SystemClock + FakeClock (bd-2lg6)
@@ -71,9 +71,40 @@ pub struct LaunchOptions {
 /// 2. **Data readiness** — check whether the database has any entity data.
 ///    If empty, start on the Bootstrap screen; otherwise start on Dashboard.
 pub fn launch_tui(options: LaunchOptions) -> Result<()> {
-    let _options = options;
-    // Phase 1 will wire this to LoreApp + App::fullscreen().run()
-    eprintln!("lore-tui: browse mode not yet implemented (Phase 1)");
+    // 1. Resolve database path.
+    let db_path = lore::core::paths::get_db_path(None);
+    if !db_path.exists() {
+        anyhow::bail!(
+            "No lore database found at {}.\n\
+             Run 'lore init' to create a config, then 'lore sync' to fetch data.",
+            db_path.display()
+        );
+    }
+
+    // 2. Open DB and run schema preflight.
+    let db = db::DbManager::open(&db_path)
+        .with_context(|| format!("opening database at {}", db_path.display()))?;
+    db.with_reader(|conn| schema_preflight(conn))?;
+
+    // 3. Check data readiness — bootstrap screen if empty.
+    let start_on_bootstrap = db.with_reader(|conn| {
+        let readiness = action::check_data_readiness(conn)?;
+        Ok(!readiness.has_any_data())
+    })?;
+
+    // 4. Build the app model.
+    let mut app = app::LoreApp::new();
+    app.db = Some(db);
+    if start_on_bootstrap {
+        app.navigation.reset_to(message::Screen::Bootstrap);
+    }
+
+    // 5. Enter the FrankenTUI event loop.
+    ftui::App::fullscreen(app)
+        .with_mouse()
+        .run()
+        .context("running TUI event loop")?;
+
     Ok(())
 }