agent: repoint roles to frank-medium/dankclaw-3090; sync niri tweaks, memories, managed skills

- config.yml: default/commit -> frank-medium (dankserver); task/tiny/smol/vision -> frank-small (dankclaw-3090); vision xhigh
- models.yml: add llamacpp (dankclaw-3090) provider; frank-large preserve_thinking + context notes
- niri: focus-ring/border/shadow layout, hot-corners off, re-add noctalia.kdl include; blankpad eDP-1 scale 1.0
- memories: flush rollouts; retire frank_large + marreta_authentik skills; add auth-chain/kv-pool/quadlet-log skills
- managed-skills: 40+ new fleet runbook skills
- agent/skills: import built-in skill set

dotfiles/zz-blankpad/niri/.config/niri/cfg/misc.kdl

@@ -8,25 +8,25 @@
         QT_WAYLAND_DISABLE_WINDOWDECORATION "1"
         XDG_CURRENT_DESKTOP "niri"
         XDG_SESSION_TYPE "wayland"
-    }
+}
 
     cursor {
         xcursor-theme "capitaine-cursors"
-        xcursor-size 24
-    }
+        xcursor-size 36
+}
 
     blur {
-        passes 2        // more passes = stronger blur (default: 3)
-        offset 3.0      // sample distance per pass (default: 3.0)
-        noise 0.03      // grain overlay (default: 0.02)
-        saturation 1.0  // color saturation boost (default: 1.5)
-    }
+    off
+    passes 2        // more passes = stronger blur (default: 3)
+    offset 3.0      // sample distance per pass (default: 3.0)
+    noise 0.03      // grain overlay (default: 0.02)
+    saturation 1.0  // color saturation boost (default: 1.5)
+}
 
     debug {
         // Allows notification actions and window activation from Noctalia.
         honor-xdg-activation-with-invalid-serial
-    }
+}
 
     hotkey-overlay {
-       skip-at-startup
-    }
+}