docs(DE): full redesign sweep — desk profiles, keybinds, noctalia v5, handy fleet wiring, incident log

- niri: index/config-tree rework, displays.md desk-profile rewrite,
  tips/action-reference/default-bindings refresh (26.04),
  generated keybindings.md (119 bindings)
- noctalia-shell.md: settings.toml lives in ~/.local/state, taskbar
  widget, v5 keybind table (Mod+D/Mod+V/Alt+Tab)
- handy.md: NEW; live nested store shape, fleet endpoint, known
  thinking-model empty-content breaker + verified cure
- log.md: DE redesign entry + pam_faillock sudo-lockout incident

omp-docs/tools/niri/tips.md

@@ -6,7 +6,7 @@ tags:
   - niri
   - tips
   - gotchas
-verified: 2026-08-28
+verified: 2026-10-09
 ---
 
 # Helpful Tips
@@ -30,6 +30,12 @@ Correct reload options, in order of preference:
 
 Niri reads `~/.config/niri/config.kdl` (or `config.kdl` relative to its CWD). Split config lives in `~/.config/niri/cfg/` — each `.kdl` file is `include`d from the main config, so a reload picks up edits to any included module.
 
+### 26.04 Config Loading Features
+
+`niri msg action load-config-file --path <file>` switches configs at runtime (26.04). It includes:
+- `optional=true` support — allows loading configs that may not exist
+- `~` expansion — tilde paths are expanded to the niri user's home directory
+
 ## 4. Alternative navigation
 
 Vim-like keys (H/J/K/L) are bound by default alongside arrow keys.
@@ -38,9 +44,16 @@ Vim-like keys (H/J/K/L) are bound by default alongside arrow keys.
 
 Every action can be invoked via `niri msg action <action-name>`.
 
-## 6. Find XKB keys
+### 26.04 IPC Enhancements
 
-Use `wev` to discover key names.
+- `niri msg layers` — lists layer-shell namespaces per output
+- `niri msg casts` — lists active PipeWire screencasts
+- `Escape` cancels drag-and-drop operations
+- Duplicate-bind parse errors now show the **first definition** in the file
+
+### Pointer Behavior
+
+Pointer warps across the screen during `view-scroll` gestures.
 
 ## Related