feat(extension): 侧边栏接入思维导图（markmap）与 RAG 问答（P3 + P4）

任务完成（status === SUCCESS）后，侧边栏顶部出现 Markdown / 思维导图 / AI 问答 三个 tab：

- 思维导图：用 markmap-lib + markmap-view 把 markdown 转成可缩放思维导图
- AI 问答：
  · 进入 tab 自动调 /api/chat/index 触发后台索引，按 2s 间隔轮询 /api/chat/status
  · 索引完成后开放输入框；调 /api/chat/ask 时带上 settings 里的默认 provider/model + 完整 history
  · Cmd/Ctrl + Enter 发送
  · 回答用 markdown-it 渲染，user 气泡用纯文本
- 切换任务时清空对话历史并重新检查索引

logic/api.ts 补 indexChatTask / getChatStatus / askChat 三件套。

依赖新增：markmap-lib, markmap-view（生产依赖）

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

BillNote_extension/package.json

@@ -70,6 +70,8 @@
     "webextension-polyfill": "^0.12.0"
   },
   "dependencies": {
-    "markdown-it": "^14.1.0"
+    "markdown-it": "^14.1.0",
+    "markmap-lib": "^0.18.12",
+    "markmap-view": "^0.18.12"
   }
 }

BillNote_extension/pnpm-lock.yaml

@@ -11,6 +11,12 @@ importers:
       markdown-it:
         specifier: ^14.1.0
         version: 14.1.1
+      markmap-lib:
+        specifier: ^0.18.12
+        version: 0.18.12(markmap-common@0.18.9)
+      markmap-view:
+        specifier: ^0.18.12
+        version: 0.18.12(markmap-common@0.18.9)
     devDependencies:
       '@antfu/eslint-config':
         specifier: ^2.27.0
@@ -685,6 +691,9 @@ packages:
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     engines: {node: '>=14.0.0', npm: '>=7.0.0'}
 
+  '@gera2ld/jsx-dom@2.2.2':
+    resolution: {integrity: sha512-EOqf31IATRE6zS1W1EoWmXZhGfLAoO9FIlwTtHduSrBdud4npYBxYAkv8dZ5hudDPwJeeSjn40kbCL4wAzr8dA==}
+
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     resolution: {integrity: sha512-3T8LkOmg45BV5FICb15QQMsyUSWrQ8AygVfC7ZG32zOalnqrilm018ZVCw0eapXux8FtA33q8PSRSstjee3jSg==}
     engines: {node: '>=10.10.0'}
@@ -1179,6 +1188,9 @@ packages:
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     resolution: {integrity: sha512-d8HKbqIcya+GR67mkZbrzhS5kKhtp8dQLcmRZLGTscGVg7yImT82cIrhtn2L8+VujWcy6KZweApgNmPsTAO/UQ==}
 
+  '@vscode/markdown-it-katex@1.1.2':
+    resolution: {integrity: sha512-+4IIv5PgrmhKvW/3LpkpkGg257OViEhXkOOgCyj5KMsjsOfnRXkni8XAuuF9Ui5p3B8WnUovlDXAQNb8RJ/RaQ==}
+
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     resolution: {integrity: sha512-8IQOTCWnLFqfHzOGm9+P8OPSEDukgg3Huc92qSG49if/xI2SAwLHQO2qaPQbjCWPBcQoO1WYfXfTACUrWV3c5A==}
 
@@ -1517,6 +1529,10 @@ packages:
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+  cheerio@1.0.0:
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+    engines: {node: '>=18.17'}
+
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     engines: {node: '>= 0.6.x'}
 
+  commander@7.2.0:
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+    engines: {node: '>= 10'}
+
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+    engines: {node: '>= 12'}
+
   commander@9.5.0:
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     engines: {node: ^12.20.0 || >=14}
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+    engines: {node: '>=12'}
+
+  d3-axis@3.0.0:
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+    engines: {node: '>=12'}
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+    engines: {node: '>=12'}
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+    engines: {node: '>=12'}
+    peerDependencies:
+      d3-selection: 2 - 3
+
+  d3-zoom@3.0.0:
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+
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+
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     engines: {node: '>=0.4.0'}
@@ -1875,6 +2029,9 @@ packages:
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+
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@@ -2503,6 +2660,10 @@ packages:
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     engines: {node: '>= 0.4'}
 
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+    engines: {node: '>=12.0.0'}
+
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+
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     engines: {node: '>= 0.4'}
 
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+    engines: {node: '>=12'}
+
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+    hasBin: true
+
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+
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+
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+
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+
   markdown-it@14.1.1:
     resolution: {integrity: sha512-BuU2qnTti9YKgK5N+IeMubp14ZUKUUw7yeJbkjtosvHiP0AZ5c8IAgEMk79D0eC8F23r4Ac/q8cAIFdm2FtyoA==}
     hasBin: true
 
+  markmap-common@0.18.9:
+    resolution: {integrity: sha512-MV2HQO7IGIm3jWEJXSG8vmdpqf4WIDXcEyAEN52lrWR1qD53Zg5l81JwjXoZ2l0rY5mofKYqUFlmdM2fqTGMVg==}
+
+  markmap-html-parser@0.18.11:
+    resolution: {integrity: sha512-+kC5C4sCGntGUhGvTa5VIb5rtM75cSy/VCy3tzZoNAcn2qZGdgYvljN0WvjsOzrEzp+V6XKgwzO0u2TdzNAiOg==}
+    peerDependencies:
+      markmap-common: '*'
+
+  markmap-lib@0.18.12:
+    resolution: {integrity: sha512-WCA4OT+b71jYg0e4PS/6NRKqihod5OpPsvw1jEGHQwCtqQrY/yXXCeRyuL3axOS5cMy5pV8BSl4CwKfJU1LxJg==}
+    peerDependencies:
+      markmap-common: '*'
+
+  markmap-view@0.18.12:
+    resolution: {integrity: sha512-D8bzT1YwIC/8rkbwm6WzigVUrpOAGv7ioEGTi1Lj+Oo8gO5sAm6hhli27jvTgUcZ9TwBeIWZ+dSUP+AupYUGlQ==}
+    peerDependencies:
+      markmap-common: '*'
+
   marky@1.2.5:
     resolution: {integrity: sha512-q9JtQJKjpsVxCRVgQ+WapguSbKC3SQ5HEzFGPAJMStgh3QjCawp00UKv3MTTAArTmGmmPUvllHZoNbZ3gs0I+Q==}
 
@@ -3241,6 +3443,9 @@ packages:
     resolution: {integrity: sha512-ppwTtiJZq0O/ai0z7yfudtBpWIoxM8yE6nHi1X47eFR2EWORqfbu6CnPlNsjeN683eT0qG6H/Pyf9fCcvjnnnQ==}
     engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
 
+  npm2url@0.2.4:
+    resolution: {integrity: sha512-arzGp/hQz0Ey+ZGhF64XVH7Xqwd+1Q/po5uGiBbzph8ebX6T0uvt3N7c1nBHQNsQVykQgHhqoRTX7JFcHecGuw==}
+
   nth-check@2.1.1:
     resolution: {integrity: sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==}
 
@@ -3376,6 +3581,9 @@ packages:
   parse5-htmlparser2-tree-adapter@7.0.0:
     resolution: {integrity: sha512-B77tOZrqqfUfnVcOrUvfdLbz4pu4RopLD/4vmu3HUPswwTA8OH0EMW9BlWR2B0RCoiZRAHEUu7IxeP1Pd1UU+g==}
 
+  parse5-parser-stream@7.1.2:
+    resolution: {integrity: sha512-JyeQc9iwFLn5TbvvqACIF/VXG6abODeB3Fwmv/TGdLk2LfbWkaySGY72at4+Ty7EkPZj854u4CrICqNk2qIbow==}
+
   parse5@7.1.2:
     resolution: {integrity: sha512-Czj1WaSVpaoj0wbhMzLmWD69anp2WH7FXMB9n1Sy8/ZFF9jolSQVMu1Ij5WIyGmcBmhk7EOndpO4mIpihVqAXw==}
 
@@ -3503,6 +3711,10 @@ packages:
     resolution: {integrity: sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==}
     engines: {node: '>= 0.8.0'}
 
+  prismjs@1.30.0:
+    resolution: {integrity: sha512-DEvV2ZF2r2/63V+tK8hQvrR2ZGn10srHbXviTlcv7Kpzw8jWiNTqbVgjO3IY8RxrrOUF8VPMQQFysYYYv0YZxw==}
+    engines: {node: '>=6'}
+
   process-nextick-args@2.0.1:
     resolution: {integrity: sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==}
 
@@ -3690,6 +3902,9 @@ packages:
     engines: {node: 20 || >=22}
     hasBin: true
 
+  robust-predicates@3.0.3:
+    resolution: {integrity: sha512-NS3levdsRIUOmiJ8FZWCP7LG3QpJyrs/TE0Zpf1yvZu8cAJJ6QMW92H1c7kWpdIHo8RvmLxN/o2JXTKHp74lUA==}
+
   rollup@4.21.0:
     resolution: {integrity: sha512-vo+S/lfA2lMS7rZ2Qoubi6I5hwZwzXeUIctILZLbHI+laNtvhhOIon2S1JksA5UEDQ7l3vberd0fxK44lTYjbQ==}
     engines: {node: '>=18.0.0', npm: '>=8.0.0'}
@@ -3708,6 +3923,9 @@ packages:
   run-parallel@1.2.0:
     resolution: {integrity: sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==}
 
+  rw@1.3.3:
+    resolution: {integrity: sha512-PdhdWy89SiZogBLaw42zdeqtRJ//zFd2PgQavcICDUgJT5oW10QCRKbJ6bg4r0/UY2M6BWd5tkxuGFRvCkgfHQ==}
+
   safe-array-concat@1.1.2:
     resolution: {integrity: sha512-vj6RsCsWBCf19jIeHEfkRMw8DPiBb+DMXklQ/1SGDHOMlHdPUkZXFQ2YdplS23zESTijAcurb1aSgJA3AgMu1Q==}
     engines: {node: '>=0.4'}
@@ -4184,6 +4402,10 @@ packages:
   undici-types@6.19.8:
     resolution: {integrity: sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==}
 
+  undici@6.25.0:
+    resolution: {integrity: sha512-ZgpWDC5gmNiuY9CnLVXEH8rl50xhRCuLNA97fAUnKi8RRuV4E6KG31pDTsLVUKnohJE0I3XDrTeEydAXRw47xg==}
+    engines: {node: '>=18.17'}
+
   unimport@3.11.0:
     resolution: {integrity: sha512-mPrvWwy+li8TLUeglC7CIREFAbeEMkJ8X2Bhxg4iLdh+HraxjFyxqWv8V+4lzekoGHChx9ofv1qGOfvHBJBl0A==}
 
@@ -4562,6 +4784,11 @@ packages:
     engines: {node: '>= 14'}
     hasBin: true
 
+  yaml@2.8.4:
+    resolution: {integrity: sha512-ml/JPOj9fOQK8RNnWojA67GbZ0ApXAUlN2UQclwv2eVgTgn7O9gg9o7paZWKMp4g0H3nTLtS9LVzhkpOFIKzog==}
+    engines: {node: '>= 14.6'}
+    hasBin: true
+
   yargs-parser@21.1.1:
     resolution: {integrity: sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==}
     engines: {node: '>=12'}
@@ -5108,6 +5335,10 @@ snapshots:
 
   '@fluent/syntax@0.19.0': {}
 
+  '@gera2ld/jsx-dom@2.2.2':
+    dependencies:
+      '@babel/runtime': 7.24.7
+
   '@humanwhocodes/config-array@0.11.14':
     dependencies:
       '@humanwhocodes/object-schema': 2.0.3
@@ -5705,6 +5936,10 @@ snapshots:
       loupe: 3.1.1
       tinyrainbow: 1.2.0
 
+  '@vscode/markdown-it-katex@1.1.2':
+    dependencies:
+      katex: 0.16.45
+
   '@vue/compiler-core@3.4.38':
     dependencies:
       '@babel/parser': 7.25.3
@@ -6125,6 +6360,20 @@ snapshots:
       domhandler: 5.0.3
       domutils: 3.1.0
 
+  cheerio@1.0.0:
+    dependencies:
+      cheerio-select: 2.1.0
+      dom-serializer: 2.0.0
+      domhandler: 5.0.3
+      domutils: 3.1.0
+      encoding-sniffer: 0.2.1
+      htmlparser2: 9.1.0
+      parse5: 7.1.2
+      parse5-htmlparser2-tree-adapter: 7.0.0
+      parse5-parser-stream: 7.1.2
+      undici: 6.25.0
+      whatwg-mimetype: 4.0.0
+
   cheerio@1.0.0-rc.12:
     dependencies:
       cheerio-select: 2.1.0
@@ -6218,6 +6467,10 @@ snapshots:
     dependencies:
       graceful-readlink: 1.0.1
 
+  commander@7.2.0: {}
+
+  commander@8.3.0: {}
+
   commander@9.5.0: {}
 
   comment-parser@1.4.1: {}
@@ -6335,6 +6588,158 @@ snapshots:
 
   csstype@3.1.3: {}
 
+  d3-array@3.2.4:
+    dependencies:
+      internmap: 2.0.3
+
+  d3-axis@3.0.0: {}
+
+  d3-brush@3.0.0:
+    dependencies:
+      d3-dispatch: 3.0.1
+      d3-drag: 3.0.0
+      d3-interpolate: 3.0.1
+      d3-selection: 3.0.0
+      d3-transition: 3.0.1(d3-selection@3.0.0)
+
+  d3-chord@3.0.1:
+    dependencies:
+      d3-path: 3.1.0
+
+  d3-color@3.1.0: {}
+
+  d3-contour@4.0.2:
+    dependencies:
+      d3-array: 3.2.4
+
+  d3-delaunay@6.0.4:
+    dependencies:
+      delaunator: 5.1.0
+
+  d3-dispatch@3.0.1: {}
+
+  d3-drag@3.0.0:
+    dependencies:
+      d3-dispatch: 3.0.1
+      d3-selection: 3.0.0
+
+  d3-dsv@3.0.1:
+    dependencies:
+      commander: 7.2.0
+      iconv-lite: 0.6.3
+      rw: 1.3.3
+
+  d3-ease@3.0.1: {}
+
+  d3-fetch@3.0.1:
+    dependencies:
+      d3-dsv: 3.0.1
+
+  d3-force@3.0.0:
+    dependencies:
+      d3-dispatch: 3.0.1
+      d3-quadtree: 3.0.1
+      d3-timer: 3.0.1
+
+  d3-format@3.1.2: {}
+
+  d3-geo@3.1.1:
+    dependencies:
+      d3-array: 3.2.4
+
+  d3-hierarchy@3.1.2: {}
+
+  d3-interpolate@3.0.1:
+    dependencies:
+      d3-color: 3.1.0
+
+  d3-path@3.1.0: {}
+
+  d3-polygon@3.0.1: {}
+
+  d3-quadtree@3.0.1: {}
+
+  d3-random@3.0.1: {}
+
+  d3-scale-chromatic@3.1.0:
+    dependencies:
+      d3-color: 3.1.0
+      d3-interpolate: 3.0.1
+
+  d3-scale@4.0.2:
+    dependencies:
+      d3-array: 3.2.4
+      d3-format: 3.1.2
+      d3-interpolate: 3.0.1
+      d3-time: 3.1.0
+      d3-time-format: 4.1.0
+
+  d3-selection@3.0.0: {}
+
+  d3-shape@3.2.0:
+    dependencies:
+      d3-path: 3.1.0
+
+  d3-time-format@4.1.0:
+    dependencies:
+      d3-time: 3.1.0
+
+  d3-time@3.1.0:
+    dependencies:
+      d3-array: 3.2.4
+
+  d3-timer@3.0.1: {}
+
+  d3-transition@3.0.1(d3-selection@3.0.0):
+    dependencies:
+      d3-color: 3.1.0
+      d3-dispatch: 3.0.1
+      d3-ease: 3.0.1
+      d3-interpolate: 3.0.1
+      d3-selection: 3.0.0
+      d3-timer: 3.0.1
+
+  d3-zoom@3.0.0:
+    dependencies:
+      d3-dispatch: 3.0.1
+      d3-drag: 3.0.0
+      d3-interpolate: 3.0.1
+      d3-selection: 3.0.0
+      d3-transition: 3.0.1(d3-selection@3.0.0)
+
+  d3@7.9.0:
+    dependencies:
+      d3-array: 3.2.4
+      d3-axis: 3.0.0
+      d3-brush: 3.0.0
+      d3-chord: 3.0.1
+      d3-color: 3.1.0
+      d3-contour: 4.0.2
+      d3-delaunay: 6.0.4
+      d3-dispatch: 3.0.1
+      d3-drag: 3.0.0
+      d3-dsv: 3.0.1
+      d3-ease: 3.0.1
+      d3-fetch: 3.0.1
+      d3-force: 3.0.0
+      d3-format: 3.1.2
+      d3-geo: 3.1.1
+      d3-hierarchy: 3.1.2
+      d3-interpolate: 3.0.1
+      d3-path: 3.1.0
+      d3-polygon: 3.0.1
+      d3-quadtree: 3.0.1
+      d3-random: 3.0.1
+      d3-scale: 4.0.2
+      d3-scale-chromatic: 3.1.0
+      d3-selection: 3.0.0
+      d3-shape: 3.2.0
+      d3-time: 3.1.0
+      d3-time-format: 4.1.0
+      d3-timer: 3.0.1
+      d3-transition: 3.0.1(d3-selection@3.0.0)
+      d3-zoom: 3.0.0
+
   data-uri-to-buffer@4.0.1: {}
 
   data-urls@5.0.0:
@@ -6424,6 +6829,10 @@ snapshots:
 
   defu@6.1.4: {}
 
+  delaunator@5.1.0:
+    dependencies:
+      robust-predicates: 3.0.3
+
   delayed-stream@1.0.0: {}
 
   destr@2.0.3: {}
@@ -6482,6 +6891,11 @@ snapshots:
 
   emoji-regex@9.2.2: {}
 
+  encoding-sniffer@0.2.1:
+    dependencies:
+      iconv-lite: 0.6.3
+      whatwg-encoding: 3.1.1
+
   end-of-stream@1.4.4:
     dependencies:
       once: 1.4.0
@@ -7371,6 +7785,8 @@ snapshots:
     dependencies:
       function-bind: 1.1.2
 
+  highlight.js@11.11.1: {}
+
   hosted-git-info@2.8.9: {}
 
   html-encoding-sniffer@4.0.0:
@@ -7384,6 +7800,13 @@ snapshots:
       domutils: 3.1.0
       entities: 4.5.0
 
+  htmlparser2@9.1.0:
+    dependencies:
+      domelementtype: 2.3.0
+      domhandler: 5.0.3
+      domutils: 3.1.0
+      entities: 4.5.0
+
   http-cache-semantics@4.1.1: {}
 
   http-proxy-agent@7.0.2:
@@ -7468,6 +7891,8 @@ snapshots:
       hasown: 2.0.2
       side-channel: 1.0.6
 
+  internmap@2.0.3: {}
+
   invert-kv@3.0.1: {}
 
   is-absolute@0.1.7:
@@ -7737,6 +8162,10 @@ snapshots:
       readable-stream: 2.3.8
       setimmediate: 1.0.5
 
+  katex@0.16.45:
+    dependencies:
+      commander: 8.3.0
+
   keyv@4.5.4:
     dependencies:
       json-buffer: 3.0.1
@@ -7877,6 +8306,14 @@ snapshots:
     dependencies:
       p-defer: 1.0.0
 
+  markdown-it-ins@4.0.0: {}
+
+  markdown-it-mark@4.0.0: {}
+
+  markdown-it-sub@2.0.0: {}
+
+  markdown-it-sup@2.0.0: {}
+
   markdown-it@14.1.1:
     dependencies:
       argparse: 2.0.1
@@ -7886,6 +8323,41 @@ snapshots:
       punycode.js: 2.3.1
       uc.micro: 2.1.0
 
+  markmap-common@0.18.9:
+    dependencies:
+      '@babel/runtime': 7.24.7
+      '@gera2ld/jsx-dom': 2.2.2
+      npm2url: 0.2.4
+
+  markmap-html-parser@0.18.11(markmap-common@0.18.9):
+    dependencies:
+      '@babel/runtime': 7.24.7
+      cheerio: 1.0.0
+      markmap-common: 0.18.9
+
+  markmap-lib@0.18.12(markmap-common@0.18.9):
+    dependencies:
+      '@babel/runtime': 7.24.7
+      '@vscode/markdown-it-katex': 1.1.2
+      highlight.js: 11.11.1
+      katex: 0.16.45
+      markdown-it: 14.1.1
+      markdown-it-ins: 4.0.0
+      markdown-it-mark: 4.0.0
+      markdown-it-sub: 2.0.0
+      markdown-it-sup: 2.0.0
+      markmap-common: 0.18.9
+      markmap-html-parser: 0.18.11(markmap-common@0.18.9)
+      markmap-view: 0.18.12(markmap-common@0.18.9)
+      prismjs: 1.30.0
+      yaml: 2.8.4
+
+  markmap-view@0.18.12(markmap-common@0.18.9):
+    dependencies:
+      '@babel/runtime': 7.24.7
+      d3: 7.9.0
+      markmap-common: 0.18.9
+
   marky@1.2.5: {}
 
   mdast-util-from-markdown@0.8.5:
@@ -8089,6 +8561,8 @@ snapshots:
     dependencies:
       path-key: 4.0.0
 
+  npm2url@0.2.4: {}
+
   nth-check@2.1.1:
     dependencies:
       boolbase: 1.0.0
@@ -8238,6 +8712,10 @@ snapshots:
       domhandler: 5.0.3
       parse5: 7.1.2
 
+  parse5-parser-stream@7.1.2:
+    dependencies:
+      parse5: 7.1.2
+
   parse5@7.1.2:
     dependencies:
       entities: 4.5.0
@@ -8347,6 +8825,8 @@ snapshots:
 
   prelude-ls@1.2.1: {}
 
+  prismjs@1.30.0: {}
+
   process-nextick-args@2.0.1: {}
 
   process-warning@3.0.0: {}
@@ -8532,6 +9012,8 @@ snapshots:
       glob: 11.0.0
       package-json-from-dist: 1.0.0
 
+  robust-predicates@3.0.3: {}
+
   rollup@4.21.0:
     dependencies:
       '@types/estree': 1.0.5
@@ -8566,6 +9048,8 @@ snapshots:
     dependencies:
       queue-microtask: 1.2.3
 
+  rw@1.3.3: {}
+
   safe-array-concat@1.1.2:
     dependencies:
       call-bind: 1.0.7
@@ -9025,6 +9509,8 @@ snapshots:
 
   undici-types@6.19.8: {}
 
+  undici@6.25.0: {}
+
   unimport@3.11.0(rollup@4.21.0):
     dependencies:
       '@rollup/pluginutils': 5.1.0(rollup@4.21.0)
@@ -9464,6 +9950,8 @@ snapshots:
 
   yaml@2.5.0: {}
 
+  yaml@2.8.4: {}
+
   yargs-parser@21.1.1: {}
 
   yargs@17.7.2:

BillNote_extension/src/components/ChatPanel.vue

@@ -0,0 +1,156 @@
+<script setup lang="ts">
+import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue'
+import MarkdownIt from 'markdown-it'
+import { askChat, getChatStatus, indexChatTask, type ChatMessage } from '~/logic/api'
+import { settings } from '~/logic/storage'
+
+const props = defineProps<{ taskId: string }>()
+
+const md = new MarkdownIt({ html: false, linkify: true, breaks: true })
+
+const messages = ref<ChatMessage[]>([])
+const draft = ref('')
+const sending = ref(false)
+const indexState = ref<'idle' | 'indexing' | 'indexed' | 'failed' | 'unknown'>('unknown')
+const error = ref('')
+const scrollEl = ref<HTMLElement | null>(null)
+let pollTimer: ReturnType<typeof setTimeout> | null = null
+
+const ready = computed(() => indexState.value === 'indexed')
+const canSend = computed(() => ready.value && draft.value.trim().length > 0 && !sending.value && !!settings.value.providerId && !!settings.value.modelName)
+
+async function pollIndex() {
+  try {
+    const res = await getChatStatus(props.taskId)
+    indexState.value = res.status
+    if (res.status === 'indexing')
+      pollTimer = setTimeout(pollIndex, 2000)
+  }
+  catch (e) {
+    error.value = (e as Error).message
+    indexState.value = 'failed'
+  }
+}
+
+async function ensureIndexed() {
+  error.value = ''
+  indexState.value = 'unknown'
+  try {
+    const status = await getChatStatus(props.taskId)
+    indexState.value = status.status
+    if (status.indexed)
+      return
+    indexState.value = 'indexing'
+    await indexChatTask(props.taskId)
+    pollIndex()
+  }
+  catch (e) {
+    error.value = (e as Error).message
+    indexState.value = 'failed'
+  }
+}
+
+async function send() {
+  if (!canSend.value)
+    return
+  const question = draft.value.trim()
+  draft.value = ''
+  messages.value.push({ role: 'user', content: question })
+  await scrollDown()
+  sending.value = true
+  try {
+    const res = await askChat({
+      task_id: props.taskId,
+      question,
+      history: messages.value.slice(0, -1),
+      provider_id: settings.value.providerId,
+      model_name: settings.value.modelName,
+    }) as { answer?: string, content?: string, message?: string } | string
+    const reply = typeof res === 'string'
+      ? res
+      : (res.answer ?? res.content ?? res.message ?? JSON.stringify(res))
+    messages.value.push({ role: 'assistant', content: reply })
+    await scrollDown()
+  }
+  catch (e) {
+    messages.value.push({ role: 'assistant', content: `❌ 调用失败：${(e as Error).message}` })
+  }
+  finally {
+    sending.value = false
+  }
+}
+
+async function scrollDown() {
+  await nextTick()
+  if (scrollEl.value)
+    scrollEl.value.scrollTop = scrollEl.value.scrollHeight
+}
+
+watch(() => props.taskId, () => {
+  messages.value = []
+  if (pollTimer) {
+    clearTimeout(pollTimer)
+    pollTimer = null
+  }
+  ensureIndexed()
+}, { immediate: false })
+
+onMounted(ensureIndexed)
+onUnmounted(() => {
+  if (pollTimer)
+    clearTimeout(pollTimer)
+})
+</script>
+
+<template>
+  <div class="flex flex-col h-full bg-white">
+    <header class="px-2 py-1 text-xs border-b flex items-center gap-2">
+      <span v-if="indexState === 'indexed'" class="tag bg-green-100 text-green-700">已索引</span>
+      <span v-else-if="indexState === 'indexing'" class="tag bg-yellow-100 text-yellow-700">索引中…</span>
+      <span v-else-if="indexState === 'failed'" class="tag bg-red-100 text-red-700">索引失败</span>
+      <span v-else class="tag bg-gray-100 text-gray-500">检查中…</span>
+      <button class="ml-auto text-xs text-gray-500 hover:text-gray-800" @click="ensureIndexed">
+        重新索引
+      </button>
+    </header>
+
+    <div v-if="error" class="text-xs text-red-600 px-2 py-1">{{ error }}</div>
+
+    <div ref="scrollEl" class="flex-1 overflow-auto px-2 py-2 flex flex-col gap-2">
+      <div v-if="messages.length === 0 && ready" class="text-xs text-gray-400 italic">
+        基于这条笔记的全文 + 视频元信息提问，例如：「这个视频的核心论点是什么？」
+      </div>
+      <div
+        v-for="(m, i) in messages"
+        :key="i"
+        class="text-sm"
+      >
+        <div
+          class="inline-block max-w-[90%] px-3 py-2 rounded"
+          :class="m.role === 'user'
+            ? 'bg-blue-600 text-white ml-auto block'
+            : 'bg-gray-100 text-gray-800'"
+        >
+          <div v-if="m.role === 'assistant'" v-html="md.render(m.content)" class="prose prose-sm max-w-none" />
+          <div v-else class="whitespace-pre-wrap break-words">{{ m.content }}</div>
+        </div>
+      </div>
+      <div v-if="sending" class="text-xs text-gray-500 italic">思考中…</div>
+    </div>
+
+    <footer class="border-t p-2 flex gap-2">
+      <textarea
+        v-model="draft"
+        class="input flex-1 resize-none"
+        rows="2"
+        :placeholder="ready ? '问点什么…（Cmd/Ctrl + Enter 发送）' : '索引完成后才能问答'"
+        :disabled="!ready"
+        @keydown.enter.exact.meta.prevent="send"
+        @keydown.enter.exact.ctrl.prevent="send"
+      />
+      <button class="btn-primary" :disabled="!canSend" @click="send">
+        {{ sending ? '…' : '发送' }}
+      </button>
+    </footer>
+  </div>
+</template>

BillNote_extension/src/components/MindMap.vue

@@ -0,0 +1,32 @@
+<script setup lang="ts">
+import { onMounted, ref, watch } from 'vue'
+import { Transformer } from 'markmap-lib'
+import { Markmap } from 'markmap-view'
+import { absolutizeMarkdownImages } from '~/logic/api'
+
+const props = defineProps<{ markdown: string }>()
+
+const svgRef = ref<SVGSVGElement | null>(null)
+let mm: Markmap | null = null
+const transformer = new Transformer()
+
+function render() {
+  if (!svgRef.value)
+    return
+  const md = absolutizeMarkdownImages(props.markdown || '')
+  const { root } = transformer.transform(md)
+  if (!mm)
+    mm = Markmap.create(svgRef.value, undefined, root)
+  else
+    mm.setData(root).then(() => mm?.fit())
+}
+
+onMounted(render)
+watch(() => props.markdown, render)
+</script>
+
+<template>
+  <div class="w-full h-full bg-white rounded border overflow-hidden">
+    <svg ref="svgRef" class="w-full h-full" />
+  </div>
+</template>

BillNote_extension/src/logic/api.ts

@@ -132,6 +132,36 @@ export async function downloadTranscriberModel(modelSize: WhisperModelSize, tran
   })
 }
 
+// ---- RAG Chat ----
+export interface ChatMessage {
+  role: 'user' | 'assistant' | 'system'
+  content: string
+}
+
+export async function indexChatTask(taskId: string): Promise<void> {
+  await request('/api/chat/index', {
+    method: 'POST',
+    body: JSON.stringify({ task_id: taskId }),
+  })
+}
+
+export async function getChatStatus(taskId: string): Promise<{ status: 'idle' | 'indexing' | 'indexed' | 'failed', indexed: boolean }> {
+  return request(`/api/chat/status?task_id=${encodeURIComponent(taskId)}`)
+}
+
+export async function askChat(payload: {
+  task_id: string
+  question: string
+  history: ChatMessage[]
+  provider_id: string
+  model_name: string
+}): Promise<unknown> {
+  return request('/api/chat/ask', {
+    method: 'POST',
+    body: JSON.stringify(payload),
+  })
+}
+
 // ---- Monitor ----
 export async function getDeployStatus(): Promise<DeployStatus> {
   return request<DeployStatus>('/api/deploy_status')

BillNote_extension/src/sidepanel/Sidepanel.vue

@@ -4,9 +4,12 @@ import { getTaskStatus } from '~/logic/api'
 import { settings, settingsReady, tasks, tasksReady, upsertTask } from '~/logic/storage'
 import type { TaskRecord } from '~/logic/types'
 
+type ViewMode = 'markdown' | 'mindmap' | 'chat'
+
 const activeTaskId = ref<string>('')
 const activeTask = computed<TaskRecord | undefined>(() => tasks.value?.find(t => t.taskId === activeTaskId.value))
 const errorMsg = ref('')
+const viewMode = ref<ViewMode>('markdown')
 
 let pollTimer: ReturnType<typeof setTimeout> | null = null
 
@@ -84,12 +87,41 @@ onUnmounted(() => {
         {{ activeTask.videoUrl }}
       </div>
       <TaskProgress :status="activeTask.status" :message="activeTask.message" />
-      <div class="flex-1 overflow-auto">
+
+      <div v-if="activeTask.status === 'SUCCESS' && activeTask.result?.markdown" class="flex gap-1 text-xs">
+        <button
+          class="px-2 py-1 rounded"
+          :class="viewMode === 'markdown' ? 'bg-blue-600 text-white' : 'bg-gray-100 text-gray-700 hover:bg-gray-200'"
+          @click="viewMode = 'markdown'"
+        >Markdown</button>
+        <button
+          class="px-2 py-1 rounded"
+          :class="viewMode === 'mindmap' ? 'bg-blue-600 text-white' : 'bg-gray-100 text-gray-700 hover:bg-gray-200'"
+          @click="viewMode = 'mindmap'"
+        >思维导图</button>
+        <button
+          class="px-2 py-1 rounded"
+          :class="viewMode === 'chat' ? 'bg-blue-600 text-white' : 'bg-gray-100 text-gray-700 hover:bg-gray-200'"
+          @click="viewMode = 'chat'"
+        >AI 问答</button>
+      </div>
+
+      <div class="flex-1 overflow-auto min-h-0">
         <MarkdownView
-          v-if="activeTask.status === 'SUCCESS' && activeTask.result?.markdown"
+          v-if="activeTask.status === 'SUCCESS' && activeTask.result?.markdown && viewMode === 'markdown'"
           :markdown="activeTask.result.markdown"
           :title="activeTask.result.audio_meta?.title"
         />
+        <MindMap
+          v-else-if="activeTask.status === 'SUCCESS' && activeTask.result?.markdown && viewMode === 'mindmap'"
+          :markdown="activeTask.result.markdown"
+          class="h-full"
+        />
+        <ChatPanel
+          v-else-if="activeTask.status === 'SUCCESS' && viewMode === 'chat'"
+          :task-id="activeTask.taskId"
+          class="h-full"
+        />
       </div>
     </section>