✨ feat(vscode): 「改动」面板加审查勾 + deepseek 增量生成文件改动说明

右栏 diff 头部加一组按钮:
- 审查对勾:与左树同一状态源,勾上则文件路径标题置灰
- ✨ 一键调 deepseek 生成该文件「一句话改动目的」

增量复用会话:首个文件开新 cc 会话并把 sessionId 记到
.spx/pr-file-summaries.json,后续文件 --resume 接上去,省去每次重新
理解 PR 的开销;resume 失败则丢弃旧 id 重开一次。说明也落盘(跨 push
保留),重载后仍显示。

- spawnClaude 增 resumeSessionId(--resume)
- 新增 prFileSummaryStore;handler handleGeneratePrFileSummary
  用 jsdiff 拼 unified diff 喂模型
- 依赖 diff(jsdiff)

vscode/pnpm-lock.yaml

@@ -12,10 +12,17 @@ patchedDependencies:
 importers:
 
   .:
+    dependencies:
+      diff:
+        specifier: ^9.0.0
+        version: 9.0.0
     devDependencies:
       '@antfu/eslint-config':
         specifier: ^6.7.3
         version: 6.7.3(@vue/compiler-sfc@3.4.27)(eslint@9.39.2(jiti@2.6.1))(typescript@5.9.3)(vitest@4.0.16(@types/node@25.0.3)(jiti@2.6.1)(lightningcss@1.32.0)(tsx@4.19.2)(yaml@2.8.2))
+      '@types/diff':
+        specifier: ^8.0.0
+        version: 8.0.0
       '@types/node':
         specifier: ^25.0.3
         version: 25.0.3
@@ -1201,6 +1208,10 @@ packages:
   '@types/deep-eql@4.0.2':
     resolution: {integrity: sha512-c9h9dVVMigMPc4bwTvC5dxqtqJZwQPePsWjPlpSOnojbor6pGqdk541lfA7AqFQr5pB1BRdq0juY9db81BwyFw==}
 
+  '@types/diff@8.0.0':
+    resolution: {integrity: sha512-o7jqJM04gfaYrdCecCVMbZhNdG6T1MHg/oQoRFdERLV+4d+V7FijhiEAbFu0Usww84Yijk9yH58U4Jk4HbtzZw==}
+    deprecated: This is a stub types definition. diff provides its own type definitions, so you do not need this installed.
+
   '@types/estree@1.0.8':
     resolution: {integrity: sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w==}
 
@@ -1760,6 +1771,10 @@ packages:
     resolution: {integrity: sha512-DPi0FmjiSU5EvQV0++GFDOJ9ASQUVFh5kD+OzOnYdi7n3Wpm9hWWGfB/O2blfHcMVTL5WkQXSnRiK9makhrcnw==}
     engines: {node: '>=0.3.1'}
 
+  diff@9.0.0:
+    resolution: {integrity: sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw==}
+    engines: {node: '>=0.3.1'}
+
   dom-serializer@2.0.0:
     resolution: {integrity: sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==}
 
@@ -4579,6 +4594,10 @@ snapshots:
 
   '@types/deep-eql@4.0.2': {}
 
+  '@types/diff@8.0.0':
+    dependencies:
+      diff: 9.0.0
+
   '@types/estree@1.0.8': {}
 
   '@types/hast@3.0.4':
@@ -5212,6 +5231,8 @@ snapshots:
 
   diff@8.0.4: {}
 
+  diff@9.0.0: {}
+
   dom-serializer@2.0.0:
     dependencies:
       domelementtype: 2.3.0