refactor(protocol): each area owns its published runtime capability list

docs/reference/agent-browser-focus-isolation.md

@@ -17,18 +17,18 @@ A `<webview>` guest is an inner WebContents in the window's frame tree. Chromium
 that tree's focus, not by which debugger the command arrived on. A hidden-window probe (host
 `<textarea>` focused, guest page logging its own events) measured:
 
-| Input | Where it lands | Host focus |
-| --- | --- | --- |
-| CDP `Input.dispatchKeyEvent` / `Input.insertText` on the guest's main session | **host textarea** | kept |
-| same, with `Emulation.setFocusEmulationEnabled` | **host textarea** | kept |
-| `webContents.sendInputEvent` key / `char` on the guest | guest | kept |
-| CDP key / `insertText` on a cross-site iframe's own (auto-attached) session | that iframe | kept |
-| `webContents.insertText` with focus in a cross-site iframe | **guest renderer crashed** | — |
-| `sendInputEvent` key with focus in a same-site iframe | that iframe | kept |
-| any mouse press (CDP mouse, touch, tap gesture, `sendInputEvent`) | guest | **moved to the webview** |
-| `inert` / `tabindex=-1` on the `<webview>` during the press | guest | **moved** |
-| press + synchronous host restore on the `<webview>` `focus` event | guest | restored, next user key lands in the host |
-| the restore above with focus emulation enabled first | guest | **not restored** (the host `focus` event never fires) |
+| Input                                                                         | Where it lands             | Host focus                                            |
+| ----------------------------------------------------------------------------- | -------------------------- | ----------------------------------------------------- |
+| CDP `Input.dispatchKeyEvent` / `Input.insertText` on the guest's main session | **host textarea**          | kept                                                  |
+| same, with `Emulation.setFocusEmulationEnabled`                               | **host textarea**          | kept                                                  |
+| `webContents.sendInputEvent` key / `char` on the guest                        | guest                      | kept                                                  |
+| CDP key / `insertText` on a cross-site iframe's own (auto-attached) session   | that iframe                | kept                                                  |
+| `webContents.insertText` with focus in a cross-site iframe                    | **guest renderer crashed** | —                                                     |
+| `sendInputEvent` key with focus in a same-site iframe                         | that iframe                | kept                                                  |
+| any mouse press (CDP mouse, touch, tap gesture, `sendInputEvent`)             | guest                      | **moved to the webview**                              |
+| `inert` / `tabindex=-1` on the `<webview>` during the press                   | guest                      | **moved**                                             |
+| press + synchronous host restore on the `<webview>` `focus` event             | guest                      | restored, next user key lands in the host             |
+| the restore above with focus emulation enabled first                          | guest                      | **not restored** (the host `focus` event never fires) |
 
 With focus emulation on, the press still moves focus and the restore on the `focus` event never
 runs, but restoring when the press ends works and the page sees no blur, so a menu or picker the
@@ -95,12 +95,12 @@ two gaps.
 
 ## Tracker
 
-| Step | PR | State |
-| --- | --- | --- |
-| CDP focus side effects removed (`bringToFront`, `activateTarget`) + this doc | stack 1/3 | in review |
-| Keys and text delivered to the guest directly | stack 2/3 | in review |
-| Presses and CDP-only input borrow focus and give it back; focus emulation | stack 3/3 | in review |
-| Regression spec: user typing in a terminal while an agent clicks, types and presses keys | stack 2/3, 3/3 | in review |
-| Visible-window spec (`@headful`, isolated display only): native focus stays on Orca's window | stack 3/3 | in review |
-| Main-session keys and text for a focused cross-site iframe go to its own session, no focus borrow | follow-up PR | in review |
-| Agent presses are refused while the user's IME composition is open (#28700) | follow-up PR | in review |
+| Step                                                                                              | PR             | State     |
+| ------------------------------------------------------------------------------------------------- | -------------- | --------- |
+| CDP focus side effects removed (`bringToFront`, `activateTarget`) + this doc                      | stack 1/3      | in review |
+| Keys and text delivered to the guest directly                                                     | stack 2/3      | in review |
+| Presses and CDP-only input borrow focus and give it back; focus emulation                         | stack 3/3      | in review |
+| Regression spec: user typing in a terminal while an agent clicks, types and presses keys          | stack 2/3, 3/3 | in review |
+| Visible-window spec (`@headful`, isolated display only): native focus stays on Orca's window      | stack 3/3      | in review |
+| Main-session keys and text for a focused cross-site iframe go to its own session, no focus borrow | follow-up PR   | in review |
+| Agent presses are refused while the user's IME composition is open (#28700)                       | follow-up PR   | in review |

mobile/src/session/mobile-structured-agent-session-host-support.ts

@@ -12,7 +12,7 @@ import {
 } from '../../../src/shared/protocol-version'
 import { AGENT_SESSION_SEND_OPTIONS_RUNTIME_CAPABILITY } from '../../../src/shared/agent-session-create-capabilities'
 import { AGENT_SESSION_PERMISSION_MODES_RUNTIME_CAPABILITY } from '../../../src/shared/agent-session-permission-modes-capability'
-import { AGENT_SESSION_PHONE_ATTACHMENTS_RUNTIME_CAPABILITY } from '../../../src/shared/runtime-capability-constants'
+import { AGENT_SESSION_PHONE_ATTACHMENTS_RUNTIME_CAPABILITY } from '../../../src/shared/agent-session-runtime-capabilities'
 
 /** Structured-session features the connected host advertised; null until the status probe answers. */
 export type StructuredAgentSessionHostSupport = {

mobile/src/tasks/mobile-tasks-capability.ts

@@ -1,5 +1,5 @@
 // Runtime capability the desktop advertises when it supports the mobile Tasks RPC
 // surface (github/gitlab/linear work items + repo.searchRefs). Older paired
 // desktops omit it, so mobile must degrade to blank/new-branch sources only.
-// Mirrors the 'mobile.tasks.v1' entry in src/shared/protocol-version.ts.
+// Mirrors the 'mobile.tasks.v1' entry in src/shared/mobile-runtime-capabilities.ts.
 export const MOBILE_TASKS_CAPABILITY = 'mobile.tasks.v1'

src/cli/handlers/project.ts

@@ -13,7 +13,7 @@ import type {
 import { getSshTargetIdForExecutionHost, type ExecutionHostId } from '../../shared/execution-host'
 import type { RepoKind } from '../../shared/repo-types'
 import type { RuntimeStatus } from '../../shared/runtime-types'
-import { PROJECT_HOST_SETUP_HOST_TARGET_RUNTIME_CAPABILITY } from '../../shared/runtime-capability-constants'
+import { PROJECT_HOST_SETUP_HOST_TARGET_RUNTIME_CAPABILITY } from '../../shared/worktree-runtime-capabilities'
 import type { CommandHandler, HandlerContext } from '../dispatch'
 import {
   formatProjectHostSetupCreateResult,

src/cli/index-project-setup.test.ts

@@ -43,7 +43,7 @@ vi.mock('child_process', async () => {
 
 import { main } from './index'
 import { okFixture, queueFixtures } from './test-fixtures'
-import { PROJECT_HOST_SETUP_HOST_TARGET_RUNTIME_CAPABILITY } from '../shared/runtime-capability-constants'
+import { PROJECT_HOST_SETUP_HOST_TARGET_RUNTIME_CAPABILITY } from '../shared/worktree-runtime-capabilities'
 import { pairRuntimeEnvironment, useWorktreeAwarenessEnvironment } from './index-test-harness'
 
 const ORCA_PROJECT = {

src/shared/agent-session-continue-interrupted-capability.ts

@@ -1,4 +1,4 @@
-// Split out of protocol-version.ts, which lists it in RUNTIME_CAPABILITIES. Import it from here.
+// Split out of protocol-version.ts; listed in AGENT_SESSION_RUNTIME_CAPABILITIES. Import it from here.
 
 // Why: a client may call `agentSession.continueInterrupted` (Continue on a reply an Orca stop cut
 // off) only on a host that has it; an older host also writes no row naming that stop, so a client

src/shared/agent-session-permission-modes-capability.ts

@@ -1,4 +1,4 @@
-// Split out of protocol-version.ts, which lists it in RUNTIME_CAPABILITIES. Import it from here.
+// Split out of protocol-version.ts; listed in AGENT_SESSION_RUNTIME_CAPABILITIES. Import it from here.
 
 // Why: a host predating per-chat modes ignores them and runs its Agent Permissions, so a client
 // must know before it lets a chat there start or take a turn. 1.4.225–1.4.226 apply modes without