refactor: standardize file-level comments, drop unused pkgs, and theme lazygit with base16

- Move inline comments to top of file across all modules for consistent
style
- Add descriptive comments to files missing them (aggregators,
assertions, scripts, flake)
- Remove unused `pkgs` parameter from i3/keybindings.nix and
zathura/default.nix
- Drop explicit `package = pkgs.zathura` (home-manager provides the
default)
- Delete stale meli-sync.sh (migrated to neomutt)
- Remove extraneous blank lines for consistent formatting
- Theme lazygit with config.scheme base16 colors instead of hardcoded
names

2 files changed, 2 insertions, 4 deletions

diff --git a/modules/office/default.nix b/modules/office/default.nix
index 73f837b..1e8fb96 100644
--- a/modules/office/default.nix
+++ b/modules/office/default.nix
@@ -1,3 +1,4 @@
+# Office - Document viewer modules (zathura)
 { ... }:
 
 {
diff --git a/modules/office/zathura/default.nix b/modules/office/zathura/default.nix
index f17a5c3..69dbfcf 100644
--- a/modules/office/zathura/default.nix
+++ b/modules/office/zathura/default.nix
@@ -1,11 +1,9 @@
+# Zathura - Minimalistic document viewer (PDF, DJVU, etc.)
 {
   config,
   lib,
-  pkgs,
   ...
 }:
-
-# Zathura - Minimalistic document viewer (PDF, DJVU, etc.)
 {
   options.office.zathura = {
     enable = lib.mkEnableOption "Enables zathura.";
@@ -14,7 +12,6 @@
   config = lib.mkIf config.office.zathura.enable {
     programs.zathura = {
       enable = true;
-      package = pkgs.zathura;
     };
 
     xdg.mimeApps.defaultApplications = {