Recurring maintenance batch (2026-05-27) (#360)

Bundle of recurring overdue tasks:

- Ringtail flake update
- Security & compliance report review
- Tooling deps bump (prek, fly, mise, forgejo workflows)
- Top stale doc review
- Top stale service review (if trivial)

Larger items (service version bumps requiring upgrades, non-local container migration) split out as separate PRs.

Reviewed-on: #360

nixos/ringtail/flake.lock

@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1777713215,
-        "narHash": "sha256-8GzXDOXckDWwST8TY5DbwYFjdvQLlP7K9CLSVx6iTTo=",
+        "lastModified": 1779699611,
+        "narHash": "sha256-EcCaSTKnmg2o4wLKaN1aqQFomwyhO7ik0bX9COdyCas=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "63b4e7e6cf75307c1d26ac3762b886b5b0247267",
+        "rev": "5ba0c9555c28685e57fa54c7a25e42c7efdbfc8d",
         "type": "github"
       },
       "original": {
@@ -27,11 +27,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1778401693,
-        "narHash": "sha256-OVHdCqXXUF5UdGkH+FF2ZL06OLZjj2kvP2dIUmzVWoo=",
+        "lastModified": 1779506708,
+        "narHash": "sha256-QOD/CNm196nCJRheux/URi4/HE66fthdOMqCJoPP1Y0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "389b83002efc26f1145e89a6a8e6edc5a6435948",
+        "rev": "3ee51fbdac8c8bdfe1e7e1fcaba6520a563f394f",
         "type": "github"
       },
       "original": {
@@ -43,11 +43,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1778430510,
-        "narHash": "sha256-Ti+ZBvW6yrWWAg2szExVTwCd4qOJ3KlVr1tFHfyfi8Q=",
+        "lastModified": 1779467186,
+        "narHash": "sha256-nOesoDCiXcUftqbRBMz9tt4blI5PvljMWbm3kuCA+0s=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8fd9daa3db09ced9700431c5b7ad0e8ba199b575",
+        "rev": "b77b3de8775677f84492abe84635f87b0e153f0f",
         "type": "github"
       },
       "original": {