fix: set buildType to dockerfile after creating Dokploy app + add saveBuildType

- Dokploy defaults to 'nixpacks' build type which fails for repos with Dockerfile
- Now provisioning flow: create → saveGithubProvider → saveBuildType(dockerfile) → saveEnvironment → deploy → createDomain
- saveBuildType sets: buildType=dockerfile, dockerfile=Dockerfile, dockerContextPath=/
- This ensures the app builds correctly from the repo's Dockerfile

src/lib/dokploy.ts

@@ -186,6 +186,30 @@ export function createDokployClient(config: DokployConfig) {
     })
   }
 
+  async function saveBuildType(input: {
+    applicationId: string
+    buildType?: string
+    dockerfile?: string
+    dockerContextPath?: string
+    dockerBuildStage?: string
+    herokuVersion?: string
+    railpackVersion?: string
+    paketoBuilderImage?: string
+    paketoBuildpacks?: string[]
+  }): Promise<void> {
+    await call('/application.saveBuildType', {
+      applicationId: input.applicationId,
+      buildType: input.buildType ?? 'dockerfile',
+      dockerfile: input.dockerfile ?? 'Dockerfile',
+      dockerContextPath: input.dockerContextPath ?? '/',
+      dockerBuildStage: input.dockerBuildStage ?? '',
+      herokuVersion: input.herokuVersion ?? '24',
+      railpackVersion: input.railpackVersion ?? 'latest',
+      paketoBuilderImage: input.paketoBuilderImage ?? '',
+      paketoBuildpacks: input.paketoBuildpacks ?? [],
+    })
+  }
+
   async function saveEnvironment(applicationId: string, envVars: Record<string, string>): Promise<void> {
     // Dokploy expects env as a .env-style string (KEY=value\nKEY2=value2)
     const envString = Object.entries(envVars)
@@ -340,13 +364,21 @@ export function createDokployClient(config: DokployConfig) {
       })
     }
 
-    // 3. Save environment variables
+    // 3. Set build type to Dockerfile (default is nixpacks which fails for many repos)
+    await saveBuildType({
+      applicationId: app.applicationId,
+      buildType: 'dockerfile',
+      dockerfile: 'Dockerfile',
+      dockerContextPath: '/',
+    })
+
+    // 4. Save environment variables
     await saveEnvironment(app.applicationId, input.envVars)
 
-    // 4. Deploy
+    // 5. Deploy
     await deployApplication(app.applicationId)
 
-    // 5. Attach domain (optional — can be done later)
+    // 6. Attach domain (with HTTPS + Let's Encrypt)
     let domain: DokployDomain | undefined
     try {
       domain = await createDomain({
@@ -406,6 +438,7 @@ export function createDokployClient(config: DokployConfig) {
     saveGiteaProvider,
     saveGitProvider,
     saveGithubProvider,
+    saveBuildType,
     saveEnvironment,
     deployApplication,
     getApplication,