Implement Experience V1 reflect, retrieval boost, and product metrics.

Add rule-based reflect() to aggregate task outcomes, environment-aware search scoring, experience_saved/recalled events, and structured injection blocks per the V1 schema.

Co-authored-by: Cursor <cursoragent@cursor.com>

experience-schema.test.mjs

@@ -66,22 +66,25 @@ test('formatExperienceInjectionLine includes structured hints', () => {
     problem: '公网访问失败',
     result: 'success',
     confidence: 0.9,
+    createdAt: Date.parse('2026-09-15T00:00:00Z'),
     environment: { runtime: '103', components: ['caddy', 'portal'] },
+    action: { executor: 'goose', steps: ['edit server.rs', 'reload caddy'] },
   });
-  assert.match(line, /部署: 摘要/);
-  assert.match(line, /问题: 公网访问失败/);
-  assert.match(line, /结果: success, conf=0.9/);
-  assert.match(line, /环境: 103 · caddy \+ portal/);
+  assert.match(line, /\[2026-09\] 公网访问失败 \(success, conf=0.9\)/);
+  assert.match(line, /环境: 103 \+ caddy \+ portal/);
+  assert.match(line, /处理: edit server.rs → reload caddy/);
+  assert.match(line, /摘要: 摘要/);
 });
 
 test('formatExperienceInjectionBlock wraps lines with header', () => {
   const block = formatExperienceInjectionBlock([
-    { title: 'A', body: 'one' },
-    { title: 'B', body: 'two' },
+    { title: 'A', body: 'one', createdAt: Date.parse('2026-01-01T00:00:00Z') },
+    { title: 'B', body: 'two', createdAt: Date.parse('2026-02-01T00:00:00Z') },
   ]);
   assert.match(block, /^# 相关经验/);
-  assert.match(block, /- A: one/);
-  assert.match(block, /- B: two/);
+  assert.match(block, /\[2026-01\] A/);
+  assert.match(block, /摘要: one/);
+  assert.match(block, /\[2026-02\] B/);
 });
 
 test('buildMindspaceJobExperiencePayload maps failed jobs to failure result', () => {