feat: AcFun tools plugin for DeepSeek Harness

Eight tools (search, video, comments, danmaku, rank, playurl, interact,
post_comment) over acfun.cn's public web API, a model-facing skill, a
bundle patch with a skill-filesystem row, and offline/live checks.

Reads are anonymous; writes require allowWriteActions plus a login cookie.

package.json

@@ -0,0 +1,47 @@
+{
+  "name": "dsh-plugin-acfun",
+  "version": "0.1.0",
+  "description": "DeepSeek Harness plugin: AcFun (A站) video search, metadata, comments, danmaku, day/week ranking, playable m3u8 URLs, and optional cookie-backed interactions (点赞/投蕉/收藏/关注/评论) plus a model-facing skill. Anonymous reads by default; writes stay disabled until both allowWriteActions and a login cookie are configured.",
+  "keywords": [
+    "deepseek-harness",
+    "dsh-plugin",
+    "acfun",
+    "a站",
+    "acfun.cn",
+    "video",
+    "danmaku",
+    "弹幕",
+    "agent-tool"
+  ],
+  "type": "module",
+  "main": "index.js",
+  "exports": {
+    ".": "./index.js",
+    "./locale/*.json": "./locale/*.json",
+    "./icon": "./icon.svg",
+    "./package.json": "./package.json"
+  },
+  "files": [
+    "index.js",
+    "lib/**/*",
+    "cordis.patch.yml",
+    "locale/*.json",
+    "icon.svg",
+    "skills/**/*",
+    "docs/**/*",
+    "scripts/**/*",
+    "README.md",
+    "README.zh.md",
+    "LICENSE"
+  ],
+  "license": "MIT",
+  "dsh": {
+    "bundle": {
+      "patch": "./cordis.patch.yml"
+    }
+  },
+  "scripts": {
+    "self-check": "node scripts/self-check.mjs",
+    "live-check": "node scripts/live-check.mjs"
+  }
+}