test(mobile): retire the shell echo checks the host lane no longer performs

The page synthesizes its own workspace handle for activate/update/remove now,
so there is no shell echo left to mismatch.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

src/mobile-web/src/mobile-web-operation-response-correlation.test.ts

@@ -42,32 +42,6 @@ const CORRELATION_CASES: CorrelationCase[] = [
       limit: 2
     }
   },
-  {
-    name: 'workspace activation workspace',
-    capability: 'workspace',
-    operation: 'activate',
-    invoke: (client) => client.workspaceActivate({ workspaceId: WORKSPACE_ID }),
-    result: {
-      workspaceId: OTHER_WORKSPACE_ID,
-      activated: true,
-      sleepingAgentWake: 'not-applicable'
-    }
-  },
-  {
-    name: 'workspace mutation workspace',
-    capability: 'workspace',
-    operation: 'update',
-    invoke: (client) =>
-      client.workspaceUpdate({ mutation: 'pin', workspaceId: WORKSPACE_ID, pinned: true }),
-    result: { workspaceId: OTHER_WORKSPACE_ID, updated: true }
-  },
-  {
-    name: 'workspace removal workspace',
-    capability: 'workspace',
-    operation: 'remove',
-    invoke: (client) => client.workspaceRemove({ workspaceId: WORKSPACE_ID }),
-    result: { workspaceId: OTHER_WORKSPACE_ID, removed: true }
-  },
   {
     name: 'session snapshot workspace',
     capability: 'workspace',

src/shared/mobile-web/bridge-operation-echo-census.test.ts

@@ -67,13 +67,10 @@ const EXPECTED_ECHO_FIELDS: Record<string, readonly string[]> = {
   'task.loadLinearIssue': ['issue.targetId'],
   'task.projectTable': ['project', 'selectedView.id'],
   'task.resolveProjectRef': ['host'],
-  'workspace.activate': ['workspaceId'],
   'workspace.creationSaveSparsePreset': ['directories', 'id', 'name', 'repoId'],
   'workspace.creationSparsePresets': ['repoId'],
   'workspace.creationSshConnect': ['targetId'],
-  'workspace.creationSshState': ['targetId'],
-  'workspace.remove': ['workspaceId'],
-  'workspace.update': ['workspaceId']
+  'workspace.creationSshState': ['targetId']
 }
 
 /** Echo helpers shared across request clients, and the result fields each one compares. Resolved
@@ -296,7 +293,7 @@ describe('mobile web bridge operation echo census', () => {
     )
 
     expect(Object.keys(EXPECTED_ECHO_FIELDS).filter((key) => !registered.has(key))).toEqual([])
-    expect(Object.keys(EXPECTED_ECHO_FIELDS).length).toBeGreaterThanOrEqual(49)
+    expect(Object.keys(EXPECTED_ECHO_FIELDS).length).toBeGreaterThanOrEqual(46)
   })
 
   it('guards the page workspace handle on every workspace-scoped echo it records', () => {
@@ -304,6 +301,6 @@ describe('mobile web bridge operation echo census', () => {
       fields.some((field) => field === 'workspaceId')
     )
 
-    expect(workspaceScoped.length).toBeGreaterThanOrEqual(40)
+    expect(workspaceScoped.length).toBeGreaterThanOrEqual(37)
   })
 })

src/shared/mobile-web/bridge-operation-registry-census.test.ts

@@ -30,7 +30,7 @@ describe('mobile web bridge operation registry census', () => {
     }
 
     expect(files.length).toBeGreaterThanOrEqual(40)
-    expect(named.size).toBeGreaterThanOrEqual(126)
+    expect(named.size).toBeGreaterThanOrEqual(125)
     expect([...named].filter((pair) => !registered.has(pair))).toEqual([])
   })
 
@@ -61,7 +61,7 @@ describe('mobile web bridge operation registry census', () => {
       }
     }
 
-    expect(pairs.size).toBeGreaterThanOrEqual(126)
+    expect(pairs.size).toBeGreaterThanOrEqual(125)
     expect([...pairs].filter(([, schemas]) => schemas.size !== 1).map(([key]) => key)).toEqual([])
     expect([...pairs.keys()].filter((key) => !registered.has(key))).toEqual([])
     expect(