feat: 예제 비디오 업데이트 및 페이지네이션 추가

- 기존 AI Hub 예제 비디오 6개 삭제
- 새로운 낙상/비낙상 시나리오 비디오 8개 추가
- gr.Examples에 examples_per_page=4 적용 (페이지당 4개씩)
- 파일명순 정렬로 일관된 순서 보장

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app.py

@@ -758,11 +758,13 @@ def create_demo() -> gr.Blocks:
 
         if examples:
             gr.Examples(
-                examples=[[ex, 0.7, "all"] for ex in examples[:3]],
+                examples=[[ex, 0.7, "all"] for ex in sorted(examples)],
                 inputs=[video_input, fall_threshold, viz_keypoints],
                 outputs=[video_output, prob_graph, result_text],
                 fn=process_video,
                 cache_examples=False,
+                examples_per_page=4,
+                label="예제 비디오",
             )
 
         # 이벤트 연결

examples/01602_L_F_BY_C2.mp4

@@ -1,3 +0,0 @@
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-size 13820623

examples/01823_Y_A_BY_C4.mp4

@@ -1,3 +0,0 @@
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examples/{00050_H_A_BY_C1.mp4 → 1-걸어오다 앞으로 넘어질뻔 하다가 일어남.mp4}

@@ -1,3 +1,3 @@
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+size 6236229

examples/{00050_H_A_BY_C2.mp4 → 1-걸어오다 앞으로 쓰러짐.mp4}

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examples/{00750_O_E_BY_C1.mp4 → 2-걸어오다 뒤로 넘어질뻔 하다가 일어남.mp4}

@@ -1,3 +1,3 @@
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examples/{00750_O_E_BY_C2.mp4 → 2-걸어오다 뒤로 쓰러짐.mp4}

@@ -1,3 +1,3 @@
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examples/3-걸어오다 뒤로 쓰러짐_2.mp4

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examples/3-걸어오다 앞으로 넘어질뻔 하다가 일어나 소파에 앉음.mp4

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examples/4-걸어오다 옆으로 쓰러짐.mp4

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+size 6247455

examples/5-소파에서 일어서다가 앞으로 쓰러짐.mp4

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