[Sync] replace the flat layout with the unified stow tree

Supersedes the old flat .config/ layout (last published 2026-06-28) with the
private repo's structure: one shared base plus per-host overlays.

- packages: common/ gui/ lw/ fl/ wm/ plus install.sh and bin/ tooling
  (dotsync, reconcile-hyde.sh)
- new README covering the layout, deploy order and the HyDE dependency
- current HyDE waybar rig (layouts/, cava), pi agent extensions, claude/
  config, tmux, presenterm, aichat roles
- fish: kp (keepassxc-cli + fzf picker, db path from $KP_DB) and
  bind_M_n_history (alt+1..9 recalls the nth history entry)
- drops cruft that should never have been tracked: the duplicate top-level
  .pi/ copy, btop.log, zellij config.kdl.bak, fish_variables
- .pi/agent/auth.json is gitignored; auth.json.example ships instead

Host-specific work sessions and the personal backlog stay in the private
tree. Endpoint locators in the llamacpp/whisper guides are placeholders
($SERVER, <own-domain>) — the guides themselves stay, since they are the
useful part.

fl/.config/hypr/userprefs.conf

@@ -0,0 +1,68 @@
+
+# █░█ █▀ █▀▀ █▀█   █▀█ █▀█ █▀▀ █▀▀ █▀
+# █▄█ ▄█ ██▄ █▀▄   █▀▀ █▀▄ ██▄ █▀░ ▄█
+
+# Set your personal hyprland configuration here
+# For a sample file, please refer to https://github.com/prasanthrangan/hyprdots/blob/main/Configs/.config/hypr/userprefs.t2
+#
+
+
+########################
+
+ 
+# █▀▀ █▄░█ █░█
+# ██▄ █░▀█ ▀▄▀
+
+# env = MANGOHUD,1
+# env = MANGOHUD_DLSYM,1
+
+
+# █▄▀ █▀▀ █▄█ █▄▄ █ █▄░█ █▀▄ █ █▄░█ █▀▀ █▀
+# █░█ ██▄ ░█░ █▄█ █ █░▀█ █▄▀ █ █░▀█ █▄█ ▄█
+
+# bind = Ctrl+Alt+Shift, R, pass, ^(com\.obsproject\.Studio)$ # toggle obs screen recording // install obs flatpak
+# bind = $mainMod+Shift, G, exec, pkill -x rofi || $scrPath/gamelauncher.sh # launch steam game launcher // install steam
+# bind = $mainMod, Period, exec, emote # launch emoji selector // install emote
+bind = $mainMod+Alt, XF86MonBrightnessDown, exec, hyprshade on blue-light-filter # enable blue light filter // install hyprshade
+bind = $mainMod+Alt, XF86MonBrightnessUp, exec, hyprshade off # disable blue light filter // install hyprshade
+
+
+# █░░ ▄▀█ █░█ █▄░█ █▀▀ █░█
+# █▄▄ █▀█ █▄█ █░▀█ █▄▄ █▀█
+
+# exec-once = swayidle -w timeout 600 'swaylock' timeout 900 'hyprctl dispatch dpms off' resume 'hyprctl dispatch dpms on' # lock after 10 mins, sleep after 15 mins // install swayidle
+# exec-once = swayidle -w timeout 1200 'swaylock; hyprctl dispatch dpms off' resume 'hyprctl dispatch dpms on' timeout 1800 'systemctl suspend' # lock and sleep after 20 mins, suspend after 30 mins // install swayidle
+# exec-once = libinput-gestures // install libinput-gestures
+# exec-once = swayosd-server # enable swayosd service
+# exec-once = `pkexec swayosd-libinput-backend` # swayosd service for keyboard input (requires to be run in a subshell)  
+
+# █░█░█ █ █▄░█ █▀▄ █▀█ █░█░█   █▀█ █░█ █░░ █▀▀ █▀
+# ▀▄▀▄▀ █ █░▀█ █▄▀ █▄█ ▀▄▀▄▀   █▀▄ █▄█ █▄▄ ██▄ ▄█
+
+windowrulev2 = opacity 0.90 0.90,class:^(neovide)$
+windowrulev2 = opacity 0.90 0.90,class:^(firefox)$
+windowrulev2 = opacity 0.80 0.80,class:^(betterbird)$ 
+windowrulev2 = opacity 0.80 0.80,class:^(org.qbittorrent.qBittorrent)$
+windowrulev2 = opacity 0.80 0.80,class:^(org.gajim.Gajim)$ 
+windowrulev2 = opacity 0.80 0.80,class:^(Chromium)$ 
+windowrulev2 = opacity 0.80 0.80,class:^(FreeTube)$
+windowrulev2 = opacity 0.80 0.80,class:^(LibreWolf)$ 
+windowrulev2 = opacity 0.80 0.60,class:^(obsidian)$ 
+windowrulev2 = opacity 0.80 0.80,class:^(VSCodium)$  
+windowrulev2 = opacity 0.80 0.80,class:^(codium-url-handler)$  
+windowrulev2 = opacity 0.80 0.80,class:^(code-oss)$
+windowrulev2 = opacity 0.80 0.80,class:^(Code)$
+windowrulev2 = opacity 0.80 0.80,class:^(kitty)$
+windowrulev2 = opacity 0.70 0.70,class:^(tilix)$
+windowrulev2 = opacity 0.70 0.70,class:^(rustdesk)$
+windowrulev2 = opacity 0.70 0.70,class:^(Ferdium)$
+windowrulev2 = opacity 0.70 0.70,class:^(org.keepassxc.KeePassXC)$ 
+
+# █░█ █▀▄▀█
+# ▀▄▀ █░▀░█
+
+# bind = Ctrl+Alt_L, V, submap, passthrough
+# submap = passthrough
+# bind = Ctrl+Alt_L, V, submap, reset
+# submap = reset
+