Capture this laptop's Omarchy customizations

Everything on top of a stock Omarchy 4.0.4-1 install, gathered so a second
machine can be brought to the same state: the ~/.config files that actually
differ from the shipped defaults, the three hand-built themes, the ten shell
plugins pinned to commits, the two custom scripts, two user units, and the
/etc drop-ins.

install.sh applies it all idempotently, backing up anything it overwrites.
capture.sh runs the other way so the repo stays the source of truth rather
than a snapshot that rots.

indie.herdr-hud's ten local-only commits ship as a git bundle plus a
working-tree patch, since they stay off the upstream PR deliberately.

Secrets, the dotfiles repo's territory (shell/git/mise), the remote-access
stack and aether-managed themes are all scoped out; README says why for each.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

config/alacritty/alacritty.toml

@@ -0,0 +1,28 @@
+general.import = [ "~/.local/state/omarchy/current/theme/alacritty.toml" ]
+
+[env]
+TERM = "xterm-256color"
+
+[terminal]
+osc52 = "CopyPaste"
+
+[font]
+normal = { family = "JetBrainsMono Nerd Font", style = "Regular" }
+bold = { family = "JetBrainsMono Nerd Font", style = "Bold" }
+italic = { family = "JetBrainsMono Nerd Font", style = "Italic" }
+size = 8
+
+[window]
+padding.x = 14
+padding.y = 14
+decorations = "None"
+
+[keyboard]
+bindings = [
+{ key = "Insert", mods = "Shift", action = "Paste" },
+{ key = "Insert", mods = "Control", action = "Copy" },
+# Send Shift+Return as CSI-u so TUIs can distinguish it from Return without treating it as Alt+Return.
+{ key = "Return", mods = "Shift", chars = "\u001B[13;2u" },
+# Legacy encoding sends Alt+Shift+Return the same as Alt+Return; send CSI-u so tmux can match M-S-Enter.
+{ key = "Return", mods = "Alt|Shift", chars = "\u001B[13;4u" }
+]