feat: align devDeps to 0.2.0-rc.2 (21 packages)

- Bump 21 @deepseek-ai devDeps from 0.1.5-rc.2 → 0.2.0-rc.2
  (dsh-code-runtime stays at 0.1.5-rc.2 — no 0.2.0-rc.2 published)
- Fix sidechat-routes.ts: source.kind 'plugin' → 'user'
  (0.2.0-rc.2 removed 'plugin' from MessageSourceMap)
- Remove unused SIDE_INJECTION_PLUGIN import
- Fix test fixtures for 0.2.0-rc.2 stricter validation:
  - tool/result message role: 'user' → 'tool'
  - add toolCallId at message top level
  - assertion kind: 'plugin' → 'user'
- Icon migration: Icon*14 → Icon*Regular, Icon*16 → Icon*Medium (19 files)
- SideChatView API migration to 0.2.0-rc.2
- Add 4 new locale keys (sideChatBlockNoExitCode, codeLabel, wrapLabel, unwrapLabel)
- intercept.tsx: guard against undefined matched in SidebarProducedFiles

Verification:
- pnpm run typecheck: PASS
- pnpm run build: PASS
- npx vitest run: 1015 passed | 0 failed | 9 skipped

tests/sidechat-routes.spec.ts

@@ -11,7 +11,7 @@ import { describe, expect, it, vi } from 'vitest'
 import { SUBAGENT_DESCRIPTOR_VERSION } from '@deepseek-ai/dsh-subagent'
 import { buildSidechatApi } from '../src/sidechat-routes.ts'
 import { SidebarError } from '../src/wire.ts'
-import { SIDE_BOUNDARY_PROMPT, SIDE_INJECTION_PLUGIN, SIDE_NEW_THREAD_TITLE, sideLabel } from '../src/sidechat-core.ts'
+import { SIDE_BOUNDARY_PROMPT, SIDE_NEW_THREAD_TITLE, sideLabel } from '../src/sidechat-core.ts'
 import type { Context } from '../src/context-types.ts'
 
 /** A fake live agent (inject/followup/cancel spied). */
@@ -165,7 +165,7 @@ describe('sidechat.start', () => {
     // context, no wake), the question is the follow-up that wakes the driver.
     expect(child.inject).toHaveBeenCalledTimes(1)
     const injection = child.inject.mock.calls[0]![0] as { content: Array<{ type: string; text: string }>; source: { kind: string; plugin: string } }
-    expect(injection.source).toEqual({ kind: 'plugin', plugin: SIDE_INJECTION_PLUGIN })
+    expect(injection.source).toEqual({ kind: 'user' })
     expect(injection.content[0]!.text.startsWith(SIDE_BOUNDARY_PROMPT)).toBe(true)
     expect(injection.content[0]!.text).not.toContain('explain the event flow')
     expect(child.followup).toHaveBeenCalledTimes(1)
@@ -259,7 +259,7 @@ describe('sidechat.start', () => {
     await api['sidechat.prompt']({ childId, text: 'explain the event flow' })
     expect(child.inject).toHaveBeenCalledTimes(1)
     const injection = child.inject.mock.calls[0]![0] as { content: Array<{ text: string }>; source: { kind: string } }
-    expect(injection.source.kind).toBe('plugin')
+    expect(injection.source.kind).toBe('user')
     expect(injection.content[0]!.text.startsWith(SIDE_BOUNDARY_PROMPT)).toBe(true)
     expect(injection.content[0]!.text).toContain('`bash` (executing)')
     expect(child.followup).toHaveBeenCalledTimes(1)

tests/sidechat-seed-validation.spec.ts

@@ -185,7 +185,8 @@ describe('sidechat seed fork markers vs the reconstructed inbox', () => {
       turn: 2, step: 1,
       message: {
         id: 'm-r',
-        role: 'user',
+        role: 'tool',
+        toolCallId: 'c1',
         content: [{ type: 'tool-result', toolCallId: 'c1', content: [{ type: 'text', text: 'ok' }] }],
         source: { kind: 'tool', callId: 'c1' },
       },