fix: make managed SSH sessions fast and resilient

Managed SSH project selection repeatedly activated the remote Host and could
leave idle ACP bindings rejected as stale-controller after a controller
generation change. Host environment updates also coupled project state to
component installation evidence and presented a crowded control surface.

Project selection is now local-only, one Host connection serves compatible
project and conversation callers, idle bindings are safely replaced only
after proven controller takeover, and active prompts keep exact resume/replay.
Remote environment setup now uses explicit signed compound package
preparation with bounded transfer, rollback, recovery, and clearer settings.

Managed Hosts must be updated to separately distributed Agent 0.11.6 before
the daemon-side controller recovery fix takes effect. Desktop packages do not
embed the Agent or remote Runtime, and existing project data is preserved.

Release note: 托管 SSH 项目切换不再重复连接，同一 Host 可顺畅承载多个项目和对话；同时修复重连后的 stale-controller，并优化远程环境安装、更新与状态布局。

src/main/remote-agent/managed-remote-project-runtime-validator.test.ts

@@ -8,9 +8,12 @@ import { ManagedRemoteProjectRuntimeValidator } from './managed-remote-project-r
 import type { RemoteProjectRuntimeValidationInput } from './remote-project-save-service'
 import type { RemoteRuntimeInstallationIdentity } from './remote-runtime-installation-manager'
 import type { ResolvedModelProfile } from '../runtime-settings-store'
+import { verifyAgentInstallationId } from '../ssh/ssh-agent-command'
 
 const digest = (character: string): string =>
   `sha256:${character.repeat(64)}`
+const agentInstallationId =
+  verifyAgentInstallationId('agent-installation')
 
 const installation: RemoteRuntimeInstallationIdentity = {
   runtimeId: 'opencode',
@@ -60,7 +63,6 @@ function advertisedCapabilities(): DaemonCapabilities {
 
 function harness(options: {
   selection?: RemoteProjectRuntimeValidationInput['selection']
-  workMode?: 'ask' | 'execute'
   architecture?: 'x64' | 'arm64'
   installed?: RemoteRuntimeInstallationIdentity
   refreshed?: DaemonCapabilities
@@ -72,7 +74,6 @@ function harness(options: {
     ({
       provider: 'opencode'
     } as const)
-  const workMode = options.workMode ?? 'ask'
   const architecture = options.architecture ?? 'x64'
   const installed = options.installed ?? installation
   let state: RemoteAgentConnection['state'] = 'ready'
@@ -85,7 +86,7 @@ function harness(options: {
   }
   const status: DaemonStatus = {
     state: 'ready',
-    installationId: 'agent-installation',
+    installationId: agentInstallationId,
     binaryDigest: digest('a'),
     daemonBootId: 'daemon-boot',
     agentVersion: '2.0.0',
@@ -127,8 +128,8 @@ function harness(options: {
     reconnect: vi.fn(),
     release: vi.fn()
   } as unknown as RemoteAgentConnection
-  const ensureInstalled = vi.fn(async () => {
-    calls.push('install')
+  const activateInstalled = vi.fn(async () => {
+    calls.push('activate')
     return installed
   })
   const resolveModelProfile = vi.fn(async () => {
@@ -138,19 +139,12 @@ function harness(options: {
       : options.modelProfile ?? modelProfile
   })
   const validator = new ManagedRemoteProjectRuntimeValidator({
-    installationManager: { ensureInstalled },
-    resolveModelProfile,
-    now: () => new Date('2030-01-01T00:00:00.000Z')
+    installationManager: { activateInstalled },
+    resolveModelProfile
   })
   const signal = new AbortController().signal
   const input: RemoteProjectRuntimeValidationInput = {
     selection,
-    runtimeSelectionKey: `${selection.provider}:${
-      'profileId' in selection
-        ? selection.profileId ?? 'platform'
-        : 'default'
-    }`,
-    workMode,
     host: {
       hostId: 'host-1',
       hostRevision: 3,
@@ -158,20 +152,12 @@ function harness(options: {
       remoteUsername: 'builder'
     },
     agent: {
-      installationId: status.installationId,
+      installationId: agentInstallationId,
       binaryDigest: status.binaryDigest,
       version: status.agentVersion,
       architecture,
       protocolMajor: 1
     },
-    workspace: {
-      canonicalRemoteRoot: '/srv/project',
-      workspaceIdentity: 'workspace-identity',
-      workspaceId: 'workspace-id',
-      generation: 1,
-      access: 'read-only',
-      capabilities: ['read-text']
-    },
     connection,
     signal
   }
@@ -180,7 +166,7 @@ function harness(options: {
     input,
     connection,
     calls,
-    ensureInstalled,
+    activateInstalled,
     refreshCapabilities,
     resolveModelProfile,
     setCapabilities: (value: DaemonCapabilities) => {
@@ -193,22 +179,15 @@ function harness(options: {
 }
 
 describe('ManagedRemoteProjectRuntimeValidator', () => {
-  it('installs, refreshes, and leases exact Ask Runtime evidence', async () => {
+  it('installs, refreshes, and leases the current Runtime', async () => {
     const test = harness()
     const lease = await test.validator.validate(test.input)
 
-    expect(test.calls).toEqual(['model', 'install', 'refresh'])
-    expect(test.ensureInstalled).toHaveBeenCalledWith('host-1', {
+    expect(test.calls).toEqual(['model', 'activate', 'refresh'])
+    expect(test.activateInstalled).toHaveBeenCalledWith('host-1', {
+      agentInstallationId,
       signal: test.input.signal
     })
-    expect(lease.evidence).toEqual({
-      runtimeSelectionKey: 'opencode:default',
-      runtimeBundleDigest: installation.bundleDigest,
-      runtimeAdapterDigest: installation.runtimeAdapterDigest,
-      agentInstallationIdAtValidation: 'agent-installation',
-      validatedAt: '2030-01-01T00:00:00.000Z',
-      workMode: 'ask'
-    })
     expect(() => lease.assertCurrent()).not.toThrow()
 
     test.setCapabilities({
@@ -221,13 +200,10 @@ describe('ManagedRemoteProjectRuntimeValidator', () => {
     expect(() => lease.assertCurrent()).toThrow(/released/iu)
   })
 
-  it('validates Execute without a second authorization tier', async () => {
-    const test = harness({ workMode: 'execute' })
+  it('fails the live lease when the connection goes offline', async () => {
+    const test = harness()
     const lease = await test.validator.validate(test.input)
 
-    expect(lease.evidence).toMatchObject({
-      workMode: 'execute'
-    })
     test.setState('offline')
     expect(() => lease.assertCurrent()).toThrow(/not ready/iu)
   })
@@ -243,7 +219,7 @@ describe('ManagedRemoteProjectRuntimeValidator', () => {
     await expect(test.validator.validate(test.input)).rejects.toThrow(
       /OpenCode Runtime/iu
     )
-    expect(test.ensureInstalled).not.toHaveBeenCalled()
+    expect(test.activateInstalled).not.toHaveBeenCalled()
     expect(test.refreshCapabilities).not.toHaveBeenCalled()
   })
 
@@ -263,7 +239,7 @@ describe('ManagedRemoteProjectRuntimeValidator', () => {
       /model profile/iu
     )
     expect(test.resolveModelProfile).toHaveBeenCalledOnce()
-    expect(test.ensureInstalled).not.toHaveBeenCalled()
+    expect(test.activateInstalled).not.toHaveBeenCalled()
     expect(test.refreshCapabilities).not.toHaveBeenCalled()
   })