refactor: Update devcontainer and configuration files for improved formatting and linting, corrected access to ssh keys (ref: #14)

.devcontainer/devcontainer.json

@@ -8,7 +8,6 @@
     "vscode": {
       "extensions": [
         "astro-build.astro-vscode",
-        "biomejs.biome-vscode",
         "GitHub.copilot",
         "GitHub.copilot-chat",
         "ms-vscode.vscode-typescript-next",
@@ -16,14 +15,23 @@
       ],
       "settings": {
         "editor.formatOnSave": true,
-        "editor.defaultFormatter": "biomejs.biome-vscode",
+        "[typescript]": {
+          "editor.formatOnSave": true,
+          "editor.defaultFormatter": null,
+          "editor.codeActionsOnSave": {
+            "source.fixAll": true
+          }
+        },
+        "[javascript]": {
+          "editor.formatOnSave": true,
+          "editor.defaultFormatter": null,
+          "editor.codeActionsOnSave": {
+            "source.fixAll": true
+          }
+        },
         "[astro]": {
           "editor.defaultFormatter": "astro-build.astro-vscode"
         },
-        "editor.codeActionsOnSave": {
-          "source.organizeImports.biome": true,
-          "quickfix.biome": true
-        },
         "typescript.updateImportsOnFileMove.enabled": "always",
         "editor.bracketPairColorization.enabled": true,
         "files.exclude": {
@@ -37,6 +45,7 @@
     }
   },
   "forwardPorts": [3000],
-  "postCreateCommand": "npm install",
-  "remoteUser": "node"
+  "postCreateCommand": "npm install && npm run check",
+  "remoteUser": "node",
+  "mounts": ["type=bind,source=${localEnv:HOME}/.ssh,target=/home/node/.ssh,readonly"]
 }