Add clap CLI, logging, and update Nix flake

Introduce a clap‑based command line interface and file logging using
simplelog. Add the corresponding dependencies (clap, log, simplelog) and
a release profile with LTO and stripping. Refactor the Nix flake:
update default.nix metadata, improve devShell, add update script and
metadata, and adjust flake.nix outputs accordingly. Update Cargo.lock
to reflect new crates.

flake.lock

@@ -8,11 +8,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1762929886,
-        "narHash": "sha256-TQZ3Ugb1FoHpTSc8KLrzN4njIZU4FemAMHyS4M3mt6s=",
+        "lastModified": 1782732035,
+        "narHash": "sha256-oREqdReAdtbMW5WFcVFDg7NM4b6rmJQglZ+sxC+CwDs=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "6998514dce2c365142a0a119a95ef95d89b84086",
+        "rev": "1748a8592edbdcbe8a2317ddc237b47a27932578",
         "type": "github"
       },
       "original": {
@@ -31,11 +31,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752689277,
-        "narHash": "sha256-uldUBFkZe/E7qbvxa3mH1ItrWZyT6w1dBKJQF/3ZSsc=",
+        "lastModified": 1782220280,
+        "narHash": "sha256-thLTFbp9D5Qknmh8q/v4FRpLGphUSijT3E86cbLYTXo=",
         "owner": "nix-community",
         "repo": "naersk",
-        "rev": "0e72363d0938b0208d6c646d10649164c43f4d64",
+        "rev": "9aa07bb0256d300219b30622d2454e85f7f3667e",
         "type": "github"
       },
       "original": {
@@ -46,11 +46,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1762844143,
-        "narHash": "sha256-SlybxLZ1/e4T2lb1czEtWVzDCVSTvk9WLwGhmxFmBxI=",
+        "lastModified": 1782723713,
+        "narHash": "sha256-oPXCU/SSUokcGaJREHibG1CBX3+s/W7orDWQOZDsEeQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9da7f1cf7f8a6e2a7cb3001b048546c92a8258b4",
+        "rev": "b5aa0fbd538984f6e3d201be0005b4463d8b09f8",
         "type": "github"
       },
       "original": {
@@ -70,11 +70,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1762860488,
-        "narHash": "sha256-rMfWMCOo/pPefM2We0iMBLi2kLBAnYoB9thi4qS7uk4=",
+        "lastModified": 1782691063,
+        "narHash": "sha256-qtAe8z4KKLIe/oKu4tc2bmaB+wEG/jjPrebR34WY0zg=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "2efc80078029894eec0699f62ec8d5c1a56af763",
+        "rev": "972c4e7bee140acd27e26b3e04673bfd05302f89",
         "type": "github"
       },
       "original": {