feat: add core session goals (#87469)

* feat: add core session goals

* feat: polish session goals in tui

* fix: resolve goal tool session stores

* fix: keep get goal read-only

* fix: migrate legacy goal session slots

* fix: persist goal token accounting

* fix: validate goal session rows

* refactor: remove unshipped goal legacy handling

* fix: handle goal commands in local tui

* fix: satisfy goal tool display checks

* fix: reset goal budget on overdue resume

* feat: surface session goals across control surfaces

* test: update gateway protocol test import

* test: align goal fixture types with protocol

* fix: scope selected global transcript usage fallback

* fix: scope selected global web subscriptions

* fix: preserve selected global agent during chat dispatch

* fix: scope chat inject to selected global agents

docs/cli/tui.md

@@ -43,6 +43,7 @@ Notes:
 - Local mode uses the embedded agent runtime directly. Most local tools work, but Gateway-only features are unavailable.
 - Local mode adds `/auth [provider]` inside the TUI command surface.
 - Plugin approval gates still apply in local mode. Tools that require approval prompt for a decision in the terminal; nothing is silently auto-approved because the Gateway is not involved.
+- Session [goals](/tools/goal) appear in the footer and can be managed with `/goal`.
 
 ## Examples
 
@@ -87,3 +88,4 @@ rerun `openclaw config validate`. See [TUI](/web/tui) and [Config](/cli/config).
 
 - [CLI reference](/cli)
 - [TUI](/web/tui)
+- [Goal](/tools/goal)