docs: close OKF conformance gaps found by night audit

- references/okf-spec.md: replace v0.2 note with the deltas verified
  against upstream SPEC.md 2026-10-19 (timestamp->generated.at and
  # Citations->sources are the two breaking changes; trust fields and
  root-index okf_version are additive; bundle stays v0.1).
- index.md: restore the agentic-web-research section lost in the
  2026-08-28 rebuild and link log.md (index-coverage doctrine).
- gen-keybinds.sh emits OKF frontmatter so its generated artifact
  (tools/niri/keybindings.md, regenerated, 120 bindings) passes kb-lint;
  test added red->green.
- fix the two broken [[niri]] wikilinks (handy, noctalia-shell).

Refs #29

omp-docs/tools/niri/keybindings.md

@@ -1,3 +1,13 @@
+---
+type: reference
+title: Niri Keybindings
+description: Live keybinding cheat sheet generated from keybinds.kdl — do not edit by hand.
+tags:
+  - niri
+  - keybindings
+generated: { by: scripts/gen-keybinds.sh }
+---
+
 # Niri Keybindings
 
 > GENERATED by `scripts/gen-keybinds.sh` from `keybinds.kdl` — do not edit by hand.
@@ -64,10 +74,10 @@
 | `Mod+K` | focus-window-up |
 | `Mod+Down` | focus-window-down |
 | `Mod+J` | focus-window-down |
-| `Mod+CTRL+Left` | swap-window-left |
-| `Mod+CTRL+H` | swap-window-left |
-| `Mod+CTRL+Right` | swap-window-right |
-| `Mod+CTRL+L` | swap-window-right |
+| `Mod+CTRL+Left` | consume-or-expel-window-left |
+| `Mod+CTRL+H` | consume-or-expel-window-left |
+| `Mod+CTRL+Right` | consume-or-expel-window-right |
+| `Mod+CTRL+L` | consume-or-expel-window-right |
 | `Mod+CTRL+Alt+Left` | move-column-left |
 | `Mod+CTRL+Alt+H` | move-column-left |
 | `Mod+CTRL+Alt+Right` | move-column-right |
@@ -141,10 +151,10 @@
 | `Mod+CTRL+F` | expand-column-to-available-width |
 | `Mod+C` | center-column |
 | `Mod+CTRL+C` | center-visible-columns |
-| `Mod+Minus` | set-column-width "-10%" |
-| `Mod+Equal` | set-column-width "+10%" |
-| `Mod+Shift+Minus` | set-window-height "-10%" |
-| `Mod+Shift+Equal` | set-window-height "+10%" |
+| `Mod+Minus` | set-column-width "-5%" |
+| `Mod+Equal` | set-column-width "+5%" |
+| `Mod+Shift+Minus` | set-window-height "-5%" |
+| `Mod+Shift+Equal` | set-window-height "+5%" |
 
 ## Modes