chore: 初始化仓库，提交 vibevideo 源码

- src/: HyperFrames 封装 CLI(hv)、组件、品牌样式、音频(TTS/混音)工具
- projects/: 各项目 project.yaml 与文案
- interactive/: 井字棋演示页
- .gitignore: 忽略 node_modules、构建产物与 HyperFrames 运行期缓存

projects/ep001/project.yaml

@@ -0,0 +1,56 @@
+title: 三个 Cursor 实用技巧
+aspect: 横屏
+fps: 60
+lang: zh-CN
+
+scenes:
+  - component: intro
+    duration: 3.5
+    props:
+      kicker: 技巧合集
+      title: 三个 Cursor 实用技巧
+      subtitle: 让你写代码少一半时间
+
+  - component: codedemo
+    duration: 8
+    props:
+      filename: fib.py
+      language: python
+      dimOthers: "true"
+      highlight: "3,4,5"
+      code: |
+        def fib(n):
+            """斐波那契数列"""
+            if n < 2:
+                return n
+            return fib(n - 1) + fib(n - 2)
+
+        for i in range(10):
+            print(f"fib({i}) = {fib(i)}")
+
+  - component: terminal
+    duration: 6
+    props:
+      title: zsh
+      prompt: "$ "
+      script: |
+        [
+          { "text": "python fib.py", "kind": "cmd" },
+          { "text": "fib(0) = 0", "kind": "out" },
+          { "text": "fib(1) = 1", "kind": "out" },
+          { "text": "fib(8) = 21", "kind": "ok" },
+          { "text": "9 行代码，递归一次跑通。", "kind": "dim" }
+        ]
+
+  - component: lowerthird
+    duration: 3
+    props:
+      text: 技巧一：先描述意图，再让它动手
+      sub: 上下文质量决定了产出质量
+
+  - component: outro
+    duration: 4
+    props:
+      cta: 觉得有用就点个关注
+      handle: "@你的频道"
+      foot: 每周三更新一期