feat: add cloudflare workers ai config and global credentials

oracle/kr/DEMO_OUTPUT.md

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+# Oracle 云存储卷重新分配演示
+
+## 预期的 Terraform 计划输出
+
+当我们执行 `terraform plan -var ch2_enabled=false -var a1_storage_size_gb=200` 时，预期的输出将是：
+
+```
+Terraform will perform the following actions:
+
+  # oci_core_instance.ch2_instance[0] will be destroyed
+  - resource "oci_core_instance" "ch2_instance" {
+      - availability_domain = "..." -> null
+      - compartment_id      = "..." -> null
+      - display_name        = "ch2-instance" -> null
+      - id                  = "..." -> null
+      - shape               = "VM.Standard2.1" -> null
+      # ... 其他实例属性
+    }
+
+  # oci_core_volume.a1_additional_storage will be created
+  + resource "oci_core_volume" "a1_additional_storage" {
+      + availability_domain = (known after apply)
+      + compartment_id      = "..."
+      + display_name        = "a1-additional-storage"
+      + id                  = (known after apply)
+      + size_in_gbs         = 200
+    }
+
+  # oci_core_volume_attachment.a1_volume_attachment will be created
+  + resource "oci_core_volume_attachment" "a1_volume_attachment" {
+      + attachment_type = "paravirtualized"
+      + id              = (known after apply)
+      + instance_id     = (known after apply)
+      + volume_id       = (known after apply)
+    }
+
+Plan: 2 to add, 0 to change, 1 to destroy.
+```
+
+## 存储卷重新分配流程
+
+1. **终止 ch2 实例** - 释放其所有关联资源（包括引导卷和数据卷）
+2. **创建新的 200GB 数据卷** - 为 A1 实例提供额外存储
+3. **附加新卷到 A1 实例** - 将新存储空间挂载到目标实例
+
+## 实际执行步骤
+
+在实际环境中，你需要：
+
+1. 确保 ~/.oci/config 文件中有正确的 [korea] 配置
+2. 运行 `terraform init` 下载 OCI provider
+3. 运行 `terraform plan -var ch2_enabled=false -var a1_storage_size_gb=200` 查看计划
+4. 确认计划无误后运行 `terraform apply -var ch2_enabled=false -var a1_storage_size_gb=200`
+
+## 预期结果
+
+- ch2 实例被完全终止，释放其存储资源
+- A1 实例获得新的 200GB 数据卷
+- ch3 实例保持不变
+- 总体资源得到优化配置
+
+## 验证步骤
+
+完成后，你可以在 Oracle 云控制台中验证：
+- ch2 实例不再存在
+- A1 实例有新的 200GB 数据卷附加
+- 存储卷的成本已从 ch2 转移到 A1