WIP: Integration branch with darwin and deck support

- Added darwin and jovian inputs
- Added platform-specific package configurations
- Added darwinConfigurations and deck nixosConfiguration
- Copied darwin and deck specific files
- Fixed darwin version compatibility

Some configurations still need debugging

modules/darwin/README.md

@@ -0,0 +1,12 @@
+
+## Layout
+```
+.
+├── dock               # MacOS dock configuration
+├── casks.nix          # List of homebrew casks
+├── default.nix        # Defines module, system-level config
+├── files.nix          # Non-Nix, static configuration files (now immutable!)
+├── home-manager.nix   # Defines user programs
+├── packages.nix       # List of packages to install for MacOS
+├── secrets.nix        # Age-encrypted secrets with agenix
+```