remove remaining webui/httpgw references in docs

AGENTS.md

@@ -128,7 +128,7 @@ git commit -m "update kde submodule"
 Each submodule has its own remote at `ssh://lkn@lneely.de:44220/lkn/ollie-{name}.git`.
 When cloning, use `--recurse-submodules` or run `git submodule update --init --recursive`.
 ## Environment
-The only submodules are `kde/` and `webui/` (now removed). For KDE:
+The only remaining submodule is `kde/`. For KDE:
 ```bash
 # Update KDE submodule:
 git submodule update --remote --merge kde

doc/REMOTE_EXECUTION.md

@@ -21,7 +21,7 @@ flowchart TB
         SRV["olliesrv"]
         AG["agent.Agent\n- LLM streaming\n- prompt assembly\n- event bus\n- compaction"]
         DBUS["D-Bus adapter\n- SessionCreated\n- StateChanged\n- ChatUpdated"]
-        GUI["KDE GUI / Web UI"]
+        GUI["KDE GUI"]
     end
 
     subgraph Remote["Remote Host (via SSH)"]

doc/USAGE.md

@@ -581,6 +581,6 @@ The next session created will pick it up automatically. No restart required.
 The 9P filesystem is the lowest level interface to ollie. All interfaces are simply wrappers around filesystem operations, and `s/sh` is the standard chat interface. Other front-ends:
 
 - **[ellie](../el/)** — `ellie.el` is the Emacs front-end, just wire it into your `init.el` and `M-x ellie`
-- **Web UI** — browser-based UI; requires `ollie-httpgw` (see above)
+- **KDE** — plasmoid, standalone GUI, Kate plugin, KRunner, system tray (see `kde/`)
 
 See each repo's README for installation and usage.