Implements Task G2: binds the imported chat LayoutDesc (0x21000006) to live
behavior, the acdream analogue of retail ChatInterface + gmMainChatUI::PostInit.
- UiDatElement: add OnClick hook + OnEvent override so Send/max-min buttons
can be wired by a controller without needing a dedicated widget type.
- ChatWindowController.Bind: reads transcript (0x10000011) and input
(0x10000016) rects from the raw ElementInfo tree (factory skips them as
Type-12/no-media), places UiChatView under the transcript panel and
UiChatInput under the input bar; replaces the imported scrollbar track
(0x10000012) with UiChatScrollbar driving UiChatView.Scroll; replaces
the channel menu placeholder (0x10000014) with UiChannelMenu; wires
Send button and max/min toggle via the new OnClick hook.
ChatCommandRouter.Submit routes all input through the existing pipeline.
- 6 smoke tests: Bind returns non-null, Transcript is child of panel,
Input is child of bar, Input.OnSubmit publishes SendChatCmd, channel
change updates submit channel, returns null when panels missing.
Build: 0 errors. Test suite: 392 passed / 1 skipped / 0 failed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
