ci: remove probe-key workflow (diagnosis complete)

.github/workflows/probe-key.yml

@@ -1,23 +0,0 @@
-name: Probe SSH Key Secret v2
-
-on:
-  workflow_dispatch:
-
-jobs:
-  probe:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Decode and inspect
-        env:
-          SSH_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
-        run: |
-          echo "$SSH_KEY" | base64 -d > /tmp/k
-          echo "key bytes: $(wc -c < /tmp/k)"
-          echo "first line: $(head -1 /tmp/k)"
-          echo "last line: $(tail -1 /tmp/k)"
-          echo "--- xxd head ---"
-          head -c 60 /tmp/k | xxd | head -3
-          echo "--- ssh-keygen verbose ---"
-          ssh-keygen -y -f /tmp/k; echo "keygen_exit=$?"
-          echo "--- openssl check? ---"
-          base64 --version | head -1

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1789724158,
+        "narHash": "sha256-nlKgrm0dsVhOSopKheVBCcOpiIticufPPVLdVOI0euA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0a3468a402c449992505b6a9fc5b06580141b750",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}