docs: 更新 Agent 技能与 env 示例以支持 Delta 模式

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

tests/test_wecom_delta.py

@@ -188,3 +188,61 @@ class PushGateTests(unittest.TestCase):
             )
         self.assertTrue(gate.should_push)
         self.assertIn("force_push", gate.reasons)
+
+
+class WebhookSilentTests(unittest.TestCase):
+    def test_skip_when_silent(self):
+        import json
+        import tempfile
+        from pathlib import Path
+
+        from daily.webhook import should_skip_push
+
+        with tempfile.TemporaryDirectory() as tmp:
+            root = Path(tmp)
+            data = root / "2026-07-10.data.json"
+            data.write_text(
+                json.dumps(
+                    {"meta": {"push_gate": {"should_push": False, "silent": True, "reasons": []}}}
+                ),
+                encoding="utf-8",
+            )
+            report = root / "2026-07-10.wecom.md"
+            report.write_text("📰 test", encoding="utf-8")
+            self.assertTrue(should_skip_push(report))
+
+
+class E2ESmokeTests(unittest.TestCase):
+    def test_delta_mode_no_full_top_label(self):
+        from daily.format_wecom import replace_wecom_board_sections
+
+        md = "📰 **早报 · 2026-07-10**\n\n🌍 **国际 AI · 精选 1**\n1. [x](https://a.com)\n"
+        movement = {
+            "skills_trending_moves": [
+                {
+                    "id": "a/b/c",
+                    "rank": 2,
+                    "title": "c",
+                    "source": "a/b",
+                    "installs": 1,
+                    "link": "https://skills.sh/a/b/c",
+                    "description": "d",
+                }
+            ],
+            "skills_hot_moves": [],
+            "github_trending_moves": [],
+            "github_emerging_moves": [],
+            "github_topic_moves": [],
+        }
+        with patch("daily.format_wecom.localize_brief_descriptions", return_value={}):
+            with patch("daily.format_wecom.needs_chinese", return_value=False):
+                out = replace_wecom_board_sections(
+                    md,
+                    mode="delta",
+                    movement=movement,
+                    trending=[],
+                    hot=[],
+                    topic_name="llm",
+                )
+        self.assertIn("Skills Trending 变化", out)
+        self.assertNotIn("Skills Trending Top", out)