feat: overhaul config loading

pnpm-lock.yaml

@@ -65,6 +65,9 @@ importers:
       '@tailwindcss/vite':
         specifier: ^4.1.17
         version: 4.1.17(rolldown-vite@7.1.4(@types/node@24.10.1)(esbuild@0.25.12)(jiti@2.6.1)(terser@5.39.0)(tsx@4.20.6)(yaml@2.8.1))
+      '@types/js-yaml':
+        specifier: ^4.0.9
+        version: 4.0.9
       '@types/node':
         specifier: ^24.10.1
         version: 24.10.1
@@ -107,9 +110,6 @@ importers:
       clsx:
         specifier: ^2.1.1
         version: 2.1.1
-      dotenv:
-        specifier: 17.2.3
-        version: 17.2.3
       drizzle-kit:
         specifier: ^0.31.7
         version: 0.31.7
@@ -122,6 +122,9 @@ importers:
       jose:
         specifier: 6.1.2
         version: 6.1.2
+      js-yaml:
+        specifier: ^4.1.1
+        version: 4.1.1
       lefthook:
         specifier: ^2.0.4
         version: 2.0.4
@@ -2950,10 +2953,6 @@ packages:
     resolution: {integrity: sha512-iND4mcOWhPaCNh54WmK/KoSb35AFqPAUWFMffTQcp52uQt36b5uNwEJTSXntJZBbeGad72Crbi/hvDIv6us/6Q==}
     engines: {node: '>= 8.0'}
 
-  dotenv@17.2.3:
-    resolution: {integrity: sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==}
-    engines: {node: '>=12'}
-
   drizzle-kit@0.31.7:
     resolution: {integrity: sha512-hOzRGSdyKIU4FcTSFYGKdXEjFsncVwHZ43gY3WU5Bz9j5Iadp6Rh6hxLSQ1IWXpKLBKt/d5y1cpSPcV+FcoQ1A==}
     hasBin: true
@@ -7661,8 +7660,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  dotenv@17.2.3: {}
-
   drizzle-kit@0.31.7:
     dependencies:
       '@drizzle-team/brocli': 0.10.2