fix: show live Laya analysis progress (#21)

Track the Laya identity phase separately from catalog projection progress and expose phase-specific counters through the live status API and Settings presentation.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

test/liveAnalysisPresentation.test.js

@@ -3,21 +3,47 @@ const assert = require('node:assert/strict');
 const { layaFallbackMessage, present } = require('../public/js/services/liveAnalysisPresentation.js');
 
 test('presents determinate channel analysis progress', () => {
-    const view = present({ status: 'building', processed: 25, total: 100 });
+    const view = present({ status: 'building', phase: 'projecting', processed: 25, total: 100 });
     assert.equal(view.busy, true);
+    assert.equal(view.statusLabel, 'Building channel catalog…');
     assert.equal(view.progressIndeterminate, false);
     assert.equal(view.progressPercent, 25);
-    assert.equal(view.progressText, '25 of 100 · 25%');
+    assert.equal(view.progressText, '25 of 100 channels · 25%');
+});
+
+test('presents Laya identity progress using AI batch counters', () => {
+    const view = present({
+        status: 'building',
+        phase: 'laya_identity',
+        layaProcessed: 3,
+        layaTotal: 8,
+        processed: 0,
+        total: 39348
+    });
+    assert.equal(view.statusLabel, 'Analyzing with local AI…');
+    assert.equal(view.progressIndeterminate, false);
+    assert.equal(view.progressPercent, 38);
+    assert.equal(view.progressText, 'AI batch 3 of 8 · 38%');
 });
 
 test('presents indeterminate progress when totals are unavailable', () => {
     const view = present({ status: 'queued', processed: null, total: null });
     assert.equal(view.busy, true);
     assert.equal(view.progressIndeterminate, true);
+    assert.equal(view.progressPercent, null);
+    assert.equal(view.progressText, 'In progress…');
     assert.equal(view.buttonLabel, 'Analyze channels');
     assert.equal(present({ status: 'running', processed: null, total: 100 }).progressIndeterminate, true);
 });
 
+test('presents writing as an indeterminate finalization phase', () => {
+    const view = present({ status: 'building', phase: 'writing', processed: 39348, total: 39348 });
+    assert.equal(view.statusLabel, 'Saving channel catalog…');
+    assert.equal(view.progressIndeterminate, true);
+    assert.equal(view.progressPercent, null);
+    assert.equal(view.progressText, 'Finalizing…');
+});
+
 test('presents success and retry states', () => {
     assert.deepEqual(
         { label: present({ status: 'success', projectedCount: 12 }).statusLabel, button: present({ status: 'success' }).buttonLabel },