fix(gateway): load .env from monorepo root via dotenv (#108)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

pnpm-lock.yaml

@@ -128,6 +128,9 @@ importers:
       class-validator:
         specifier: ^0.15.1
         version: 0.15.1
+      dotenv:
+        specifier: ^17.3.1
+        version: 17.3.1
       fastify:
         specifier: ^5.0.0
         version: 5.8.2
@@ -3411,6 +3414,10 @@ packages:
     resolution: {integrity: sha512-2l0gsPOLPs5t6GFZfQZKnL1OJNYFcuC/ETWsW4VtKVD/tg4ICa9x+jb9bkPffkMdRpRpuUaO/fKkHCBeiCKh8g==}
     engines: {node: '>=18'}
 
+  dotenv@17.3.1:
+    resolution: {integrity: sha512-IO8C/dzEb6O3F9/twg6ZLXz164a2fhTnEWb95H23Dm4OuN+92NmEAlTrupP9VW6Jm3sO26tQlqyvyi4CsnY9GA==}
+    engines: {node: '>=12'}
+
   drizzle-kit@0.31.9:
     resolution: {integrity: sha512-GViD3IgsXn7trFyBUUHyTFBpH/FsHTxYJ66qdbVggxef4UBPHRYxQaRzYLTuekYnk9i5FIEL9pbBIwMqX/Uwrg==}
     hasBin: true
@@ -8281,6 +8288,8 @@ snapshots:
       - bufferutil
       - utf-8-validate
 
+  dotenv@17.3.1: {}
+
   drizzle-kit@0.31.9:
     dependencies:
       '@drizzle-team/brocli': 0.10.2