removed .github, not needed

.github/workflows/nix-wallet-connections-validation.yml

@@ -1,76 +0,0 @@
-name: Wallet Connections Nix Validation
-
-on:
-  workflow_dispatch:
-  pull_request:
-    branches: [ main ]
-
-permissions:
-  contents: read
-
-jobs:
-  validate:
-    runs-on: ubuntu-latest
-    timeout-minutes: 180
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v16
-
-      - name: Targeted Wallet Connections tests
-        run: python3 -m unittest app/tests/test_wallet_connections.py
-
-      - name: Full Python tests
-        run: python3 -m unittest discover -s app/tests -p 'test_*.py'
-
-      - name: JavaScript syntax checks
-        run: |
-          set -euo pipefail
-          for f in app/sovran_systemsos_web/static/js/*.js; do
-            node --check "$f"
-          done
-
-      - name: Verify Alby Hub patches apply to v1.23.0
-        run: |
-          set -euo pipefail
-          tmpdir="$(mktemp -d)"
-          curl -fsSL https://github.com/getAlby/hub/archive/refs/tags/v1.23.0.tar.gz | tar -xz -C "$tmpdir"
-          srcdir="$(find "$tmpdir" -maxdepth 1 -type d -name 'hub-*' | head -n1)"
-          test -n "$srcdir"
-          cd "$srcdir"
-          git init -q
-          git add -A
-          git commit -q -m "snapshot"
-          git apply --check "$GITHUB_WORKSPACE/packages/albyhub/0001-private-route-hints.patch"
-          git apply --check "$GITHUB_WORKSPACE/packages/albyhub/0002-isolated-invoice-app-id.patch"
-          git apply --check "$GITHUB_WORKSPACE/packages/albyhub/0003-loopback-bind-host.patch"
-
-      - name: Build patched Alby Hub
-        run: |
-          nix --extra-experimental-features 'nix-command flakes' build \
-            --no-link --print-build-logs --impure --expr \
-            'let
-              flake = builtins.getFlake (toString ./.);
-              pkgs = import flake.inputs.nixpkgs { system = "x86_64-linux"; };
-              patchedAlbyHub = pkgs.albyhub.overrideAttrs (old: {
-                patches = (old.patches or []) ++ [
-                  ./packages/albyhub/0001-private-route-hints.patch
-                  ./packages/albyhub/0002-isolated-invoice-app-id.patch
-                  ./packages/albyhub/0003-loopback-bind-host.patch
-                ];
-              });
-            in patchedAlbyHub'
-
-      - name: Run real NixOS listener test
-        run: |
-          nix --extra-experimental-features 'nix-command flakes' build \
-            '.#checks.x86_64-linux.nwc-wallets-port-collision' \
-            --no-link --print-build-logs
-
-      - name: Build full system closure
-        run: |
-          nix --extra-experimental-features 'nix-command flakes' build \
-            '.#nixosConfigurations.nixos.config.system.build.toplevel' \
-            --no-link --print-build-logs