Phase 1 MVP: crawl 10 high-quality oshwhub projects into LFS

Why:
- Charles 指定：先爬 10 个高质量项目存 Gitea LFS，一个项目一个文件夹，
  保留原文件和 URL。先以小批量验证 schema + LFS 流水线，放量前再拍板
  存储规模。

What:
- crawlers/oshwhub: 列表 API (`/api/project?sort=hot`) + SSR HTML 解析，
  一次性产出 metadata / description / cover / files / _urls
- schemas/project.schema.json: 跨源统一 schema
- docs/sources/oshwhub.md: API 入口 / 字段映射 / 陷阱调研
- pyproject.toml: httpx[http2] 单依赖
- .gitattributes: data/raw/**/files/** 一律走 LFS（规则写窄，避免误伤 schemas/*.json 等）
- .gitignore: 移除 data/raw/* 排除（改走 LFS 入库）

10 个项目覆盖：调试器 / 加热台 / 盖革计数器 / 数控电源 / 焊台 /
智能手表 / USB 测电流 / ZVS 感应加热 / AI 开发板 / 红外热成像。
共 52 附件 ≈ 524 MB 入 LFS，筛选判据 grade=4 & likes>=100 & 多样性。

Known gaps（见 plan.md § Phase 1.4）：
- EasyEDA 源 JSON 需登录 (u.lceda.cn)，v0.1 跳过
- fs-web-stream.jlc.com 的工程源下载未测
- scripts/validate.py 自动 schema 校验未实现

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

data/raw/oshwhub/892dbc4ebca74227ac6269a1693380d8/_urls.json

@@ -0,0 +1,36 @@
+{
+  "detail_url": "https://oshwhub.com/dhx233/esp32_s3_watch",
+  "cover_url": "https://image.lceda.cn/oshwhub/e65c8dd8b85f426ebded1acf94084b55.jpg",
+  "attachments": [
+    {
+      "name": "演示视频V1_0_2.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/5/rjPzo9rb32stS2uMtOYyQHB1Mzsku2jIpfkxS0u6.mp4",
+      "original_id": "9e3b1b0aab4e4077bba58e9b99072752"
+    },
+    {
+      "name": "QF_ZERO_V2_V1_0_3.zip",
+      "url": "https://image.lceda.cn/attachments/2023/5/a07O0dN3bNwNohLe4TFmCeNc9OPFYHyo3p4GWagW.zip",
+      "original_id": "ec260479deae4829992fe4e87f0e461a"
+    },
+    {
+      "name": "lvgl_demo_watch_code_blocks.zip",
+      "url": "https://image.lceda.cn/attachments/2023/6/vEqACjU5pj8DZUYTFlMSquYiTrT05KqWEXKtwtle.zip",
+      "original_id": "511fcfd7fd0743c98b5d05bb2919c778"
+    },
+    {
+      "name": "V1.2外壳打螺丝版本.zip",
+      "url": "https://image.lceda.cn/attachments/2023/6/Y4R4DRQgYSDp7qdF3Jti2NYUpFlRpGXvEr1EcDpW.zip",
+      "original_id": "27d5835a26824d0ab7666ebe7a1d679b"
+    },
+    {
+      "name": "wx_camera_1697969384939.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/10/FiNBQGrRzqux6SvmFD2ZRxvEV8hgRpW2bpF08zKj.mp4",
+      "original_id": "bd456ad1f21a40b2a84492eab943fb08"
+    },
+    {
+      "name": "qf_zero_v2_firmeware_V1.0.9_app.bin",
+      "url": "https://image.lceda.cn/oshwhub/project/attachments/4d91cd61c2374105bb43e92a619b4efa.bin",
+      "original_id": "f4b04d62ddc5451ca1fd77675d75cf53"
+    }
+  ]
+}

data/raw/oshwhub/892dbc4ebca74227ac6269a1693380d8/description.md

@@ -0,0 +1,9 @@
+# QF ZERO V2 智能手表终端V1.0.9-24-6-29
+
+QF ZERO V2 ，基于ESP32-S3的智能手表
+
+---
+- Source: https://oshwhub.com/dhx233/esp32_s3_watch
+- Author: 启凡科创 (dhx233)
+- License: Public Domain
+- Published: 2024-07-01T02:04:33.000Z

data/raw/oshwhub/892dbc4ebca74227ac6269a1693380d8/metadata.json

@@ -0,0 +1,107 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/dhx233/esp32_s3_watch",
+  "project_id": "892dbc4ebca74227ac6269a1693380d8",
+  "title": "QF ZERO V2 智能手表终端V1.0.9-24-6-29",
+  "description_short": "QF ZERO V2 ，基于ESP32-S3的智能手表",
+  "description_path": "description.md",
+  "author": {
+    "username": "dhx233",
+    "display_name": "启凡科创",
+    "user_id": "80fcee0f22fe42998cec371bbcdff7a2"
+  },
+  "license": "Public Domain",
+  "tags": [],
+  "created_at": "2022-09-15T13:21:36.000Z",
+  "updated_at": "2025-10-27T07:11:41.000Z",
+  "published_at": "2024-07-01T02:04:33.000Z",
+  "crawled_at": "2026-04-23T11:28:24.308080+00:00",
+  "metrics": {
+    "likes": 774,
+    "stars": 1737,
+    "forks": 643,
+    "views": 175969,
+    "watch": 0,
+    "comments": 164
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/oshwhub/e65c8dd8b85f426ebded1acf94084b55.jpg",
+    "path": "cover.jpg"
+  },
+  "files": [
+    {
+      "name": "演示视频V1_0_2.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/5/rjPzo9rb32stS2uMtOYyQHB1Mzsku2jIpfkxS0u6.mp4",
+      "original_id": "9e3b1b0aab4e4077bba58e9b99072752",
+      "ext": "mp4",
+      "mime": "video/mp4",
+      "size": 14702117,
+      "md5": "7b9779bb0cedd761d73eda999f0d96cb",
+      "path": "files/演示视频V1_0_2.mp4",
+      "sha256": "cece75aa3cad558c25147c3b3591c2876cf764be3ff2e54e028c9648c7be1ba0"
+    },
+    {
+      "name": "QF_ZERO_V2_V1_0_3.zip",
+      "url": "https://image.lceda.cn/attachments/2023/5/a07O0dN3bNwNohLe4TFmCeNc9OPFYHyo3p4GWagW.zip",
+      "original_id": "ec260479deae4829992fe4e87f0e461a",
+      "ext": "zip",
+      "mime": "application/x-zip-compressed",
+      "size": 26411463,
+      "md5": "8b3f107973b5ac8185afe09ee29a82a0",
+      "path": "files/QF_ZERO_V2_V1_0_3.zip",
+      "sha256": "689b73069c915c7897e0de328152b571cabd1d874740a4e1e887604ae9ae899e"
+    },
+    {
+      "name": "lvgl_demo_watch_code_blocks.zip",
+      "url": "https://image.lceda.cn/attachments/2023/6/vEqACjU5pj8DZUYTFlMSquYiTrT05KqWEXKtwtle.zip",
+      "original_id": "511fcfd7fd0743c98b5d05bb2919c778",
+      "ext": "zip",
+      "mime": "application/x-zip-compressed",
+      "size": 52281875,
+      "md5": "f1a563c71d4d28bad47edb99b80575aa",
+      "path": "files/lvgl_demo_watch_code_blocks.zip",
+      "sha256": "3ac73ef2b6959643a36f33a55b508fb7d7b813d61fc1b51f821533914b971abb"
+    },
+    {
+      "name": "V1.2外壳打螺丝版本.zip",
+      "url": "https://image.lceda.cn/attachments/2023/6/Y4R4DRQgYSDp7qdF3Jti2NYUpFlRpGXvEr1EcDpW.zip",
+      "original_id": "27d5835a26824d0ab7666ebe7a1d679b",
+      "ext": "zip",
+      "mime": "application/x-zip-compressed",
+      "size": 283522,
+      "md5": "4189e693d7ef28528442a09dab456a4a",
+      "path": "files/V1.2外壳打螺丝版本.zip",
+      "sha256": "48930d21ca6c51da2b656c7602a89dd0a628470dbea5b0623ae5678b17215b20"
+    },
+    {
+      "name": "wx_camera_1697969384939.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/10/FiNBQGrRzqux6SvmFD2ZRxvEV8hgRpW2bpF08zKj.mp4",
+      "original_id": "bd456ad1f21a40b2a84492eab943fb08",
+      "ext": "mp4",
+      "mime": "video/mp4",
+      "size": 22640916,
+      "md5": "d2ecd4237f611ba495b1fb75e924fc78",
+      "path": "files/wx_camera_1697969384939.mp4",
+      "sha256": "cdf1df59f95baac8374244c786e6cf72ed264caf5ca1ed4a8a3b1c42ffb3c87e"
+    },
+    {
+      "name": "qf_zero_v2_firmeware_V1.0.9_app.bin",
+      "url": "https://image.lceda.cn/oshwhub/project/attachments/4d91cd61c2374105bb43e92a619b4efa.bin",
+      "original_id": "f4b04d62ddc5451ca1fd77675d75cf53",
+      "ext": "bin",
+      "mime": "application/octet-stream",
+      "size": 2130880,
+      "md5": "cf09c83d912765f054c72c07f2651e95",
+      "path": "files/qf_zero_v2_firmeware_V1.0.9_app.bin",
+      "sha256": "d319ce5ad9787381cfe67977f99c1246af3ba8b4de65dbeb5bad42a29cac8df0"
+    }
+  ],
+  "raw_fields": {
+    "path": "dhx233/esp32_s3_watch",
+    "grade": 4,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  }
+}