chore: update packages and dependencies

- Bumped `claude-code` to version 1.0.35 and updated associated hashes.
- Upgraded `gemini-cli` to version 0.1.7 and refactored its `package.nix`.
- Updated `flake.lock` inputs for `nixpkgs`, `home-manager`, and other dependencies.

flake.lock

@@ -440,11 +440,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1748226808,
-        "narHash": "sha256-GaBRgxjWO1bAQa8P2+FDxG4ANBVhjnSjBms096qQdxo=",
+        "lastModified": 1750792728,
+        "narHash": "sha256-Lh3dopA8DdY+ZoaAJPrtkZOZaFEJGSYjOdAYYgOPgE4=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "83665c39fa688bd6a1f7c43cf7997a70f6a109f9",
+        "rev": "366f00797b1efb70f2882d3da485e3c10fd3d557",
         "type": "github"
       },
       "original": {
@@ -727,11 +727,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1748162331,
-        "narHash": "sha256-rqc2RKYTxP3tbjA+PB3VMRQNnjesrT0pEofXQTrMsS8=",
+        "lastModified": 1750969886,
+        "narHash": "sha256-zW/OFnotiz/ndPFdebpo3X0CrbVNf22n4DjN2vxlb58=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "7c43f080a7f28b2774f3b3f43234ca11661bf334",
+        "rev": "a676066377a2fe7457369dd37c31fd2263b662f4",
         "type": "github"
       },
       "original": {
@@ -1075,11 +1075,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1748190013,
-        "narHash": "sha256-R5HJFflOfsP5FBtk+zE8FpL8uqE7n62jqOsADvVshhE=",
+        "lastModified": 1751011381,
+        "narHash": "sha256-krGXKxvkBhnrSC/kGBmg5MyupUUT5R6IBCLEzx9jhMM=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "62b852f6c6742134ade1abdd2a21685fd617a291",
+        "rev": "30e2e2857ba47844aa71991daa6ed1fc678bcbb7",
         "type": "github"
       },
       "original": {