flake.lock: Update

Flake lock file updates:

• Updated input 'llm-agents':
    'github:numtide/llm-agents.nix/c16f757' (2026-03-31)
  → 'github:numtide/llm-agents.nix/09cd3ef' (2026-04-02)
• Updated input 'llm-agents/flake-parts':
    'github:hercules-ci/flake-parts/f20dc5d' (2026-03-01)
  → 'github:hercules-ci/flake-parts/3107b77' (2026-04-01)
• Updated input 'llm-agents/nixpkgs':
    'github:NixOS/nixpkgs/15c6719' (2026-03-30)
  → 'github:NixOS/nixpkgs/106eb93' (2026-04-02)
• Updated input 'llm-agents/treefmt-nix':
    'github:numtide/treefmt-nix/71b125c' (2026-03-12)
  → 'github:numtide/treefmt-nix/7592596' (2026-04-02)

flake.lock

@@ -307,11 +307,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1772408722,
-        "narHash": "sha256-rHuJtdcOjK7rAHpHphUb1iCvgkU3GpfvicLMwwnfMT0=",
+        "lastModified": 1775087534,
+        "narHash": "sha256-91qqW8lhL7TLwgQWijoGBbiD4t7/q75KTi8NxjVmSmA=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "f20dc5d9b8027381c474144ecabc9034d6a839a3",
+        "rev": "3107b77cd68437b9a76194f0f7f9c55f2329ca5b",
         "type": "github"
       },
       "original": {
@@ -668,11 +668,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1774947294,
-        "narHash": "sha256-HQCV6dQQJk+4Ogox1LXhIUMtaFUeVy72LzY3HLyO5sE=",
+        "lastModified": 1775141156,
+        "narHash": "sha256-tNpLkiOtmxCxCch4zPLoEGyaZK16ryOpQuujtix0AqY=",
         "owner": "numtide",
         "repo": "llm-agents.nix",
-        "rev": "c16f7573405eec513a201b4626aabcd1444a7382",
+        "rev": "09cd3ef62649bc47fa3eb34318bb6ef5096654dd",
         "type": "github"
       },
       "original": {
@@ -978,11 +978,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1774855581,
-        "narHash": "sha256-YkreHeMgTCYvJ5fESV0YyqQK49bHGe2B51tH6claUh4=",
+        "lastModified": 1775095191,
+        "narHash": "sha256-CsqRiYbgQyv01LS0NlC7shwzhDhjNDQSrhBX8VuD3nM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "15c6719d8c604779cf59e03c245ea61d3d7ab69b",
+        "rev": "106eb93cbb9d4e4726bf6bc367a3114f7ed6b32f",
         "type": "github"
       },
       "original": {
@@ -1310,11 +1310,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1773297127,
-        "narHash": "sha256-6E/yhXP7Oy/NbXtf1ktzmU8SdVqJQ09HC/48ebEGBpk=",
+        "lastModified": 1775125835,
+        "narHash": "sha256-2qYcPgzFhnQWchHo0SlqLHrXpux5i6ay6UHA+v2iH4U=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "71b125cd05fbfd78cab3e070b73544abe24c5016",
+        "rev": "75925962939880974e3ab417879daffcba36c4a3",
         "type": "github"
       },
       "original": {