refactor: drop the shared subpath export, keeping package.json untouched

The subpath entry existed only so the TUI could import the client-side
projection fallback. The TUI spawns its gateway from this same checkout and
cannot version-skew with it, so that fallback was dead weight — it reads
`display` directly now. With its last caller gone the dispatch helper folds
back into the desktop, where an older backend is genuinely reachable.

apps/shared/package.json is byte-identical to main again.

apps/desktop/src/app/session/hooks/use-prompt-actions/slash.ts

@@ -1,6 +1,6 @@
 import { type MutableRefObject, useCallback, useRef } from 'react'
 
-import { dispatchDisplayText } from '@hermes/shared'
+import { skillInvocationText } from '@hermes/shared'
 
 import { getProfiles } from '@/hermes'
 import type { Translations } from '@/i18n'
@@ -268,8 +268,10 @@ export function useSlashCommand(deps: SlashCommandDeps) {
 
           // A skill/bundle dispatch's `message` is the expanded skill body —
           // model-facing scaffolding. Never render it; the bubble shows the
-          // invocation instead.
-          const displayText = dispatchDisplayText('display' in dispatch ? dispatch.display : undefined, message)
+          // invocation the gateway projected, or one read from the payload
+          // when the backend is older than this app.
+          const projected = 'display' in dispatch ? dispatch.display?.trim() : ''
+          const displayText = projected || skillInvocationText(message) || undefined
 
           // Gate on the TARGET session's own busy state, not the foreground
           // view's — see isTargetSessionBusy. `busyRef` mirrors whatever chat

apps/shared/package.json

@@ -8,7 +8,6 @@
     "./billing": "./src/billing-types.ts",
     "./billing-policy": "./src/billing-policy.ts",
     "./charge-settlement": "./src/charge-settlement.ts",
-    "./skill-scaffold": "./src/skill-scaffold.ts",
     "./skin": "./src/skin.ts"
   },
   "types": "./src/index.ts",

apps/shared/src/index.ts

@@ -44,7 +44,7 @@ export {
   JsonRpcGatewayClient,
   type WebSocketLike
 } from './json-rpc-gateway'
-export { dispatchDisplayText, skillInvocationText } from './skill-scaffold'
+export { skillInvocationText } from './skill-scaffold'
 export {
   type HermesSkin,
   SKIN_BRANDING_TOKENS,

apps/shared/src/skill-scaffold.ts

@@ -67,12 +67,3 @@ export function skillInvocationText(text: string): null | string {
 
   return instruction ? `${label} ${instruction.replace(/\s+/g, ' ')}` : label
 }
-
-/**
- * What a skill/bundle dispatch should render as. Prefers the gateway's own
- * projection; falls back to reading the payload for an older gateway that
- * doesn't send one. Undefined for an ordinary send, which renders as written.
- */
-export function dispatchDisplayText(display: string | undefined, message: string): string | undefined {
-  return display?.trim() || skillInvocationText(message) || undefined
-}

ui-tui/src/app/createSlashHandler.ts

@@ -1,5 +1,3 @@
-import { dispatchDisplayText } from '@hermes/shared/skill-scaffold'
-
 import { parseSlashCommand } from '../domain/slash.js'
 import type { SlashExecResponse } from '../gatewayTypes.js'
 import { asCommandDispatch, rpcErrorMessage } from '../lib/rpc.js'
@@ -107,10 +105,13 @@ export function createSlashHandler(ctx: SlashHandlerContext): (cmd: string) => b
       }
 
       // A skill/bundle dispatch's `message` is the expanded skill body —
-      // model-facing scaffolding. The transcript shows the invocation instead;
-      // an ordinary send has no projection and goes through unchanged.
+      // model-facing scaffolding. `display` is the invocation the gateway
+      // projected; the transcript shows that instead. An ordinary send has no
+      // projection and goes through unchanged. No client-side fallback here:
+      // the TUI spawns its gateway from this same checkout, so the two can't
+      // version-skew (unlike the desktop, which can meet an older backend).
       const sendDispatch = (display: string | undefined, message: string) => {
-        const shown = dispatchDisplayText(display, message)
+        const shown = display?.trim()
 
         return shown ? send(message, true, shown) : send(message)
       }