docs(api): update swagger documentation for admin endpoints

Reflect recent API changes in Swagger documentation:
- Add endpoints for feature flag management (/admin/features)
- Add endpoint for issuing child keys to masters (/admin/masters/{id}/keys)
- Add endpoint for updating providers (/admin/providers/{id})
- Update provider model definitions with new fields (auto_ban, google_* attributes, status)

docs/swagger.yaml

@@ -26,8 +26,18 @@ definitions:
     properties:
       api_key:
         type: string
+      auto_ban:
+        type: boolean
+      ban_reason:
+        type: string
+      ban_until:
+        type: string
       base_url:
         type: string
+      google_location:
+        type: string
+      google_project:
+        type: string
       group:
         type: string
       models:
@@ -37,6 +47,11 @@ definitions:
         type: array
       name:
         type: string
+      skip_routing:
+        description: Optional control params
+        type: boolean
+      status:
+        type: string
       type:
         type: string
     type: object
@@ -112,12 +127,25 @@ definitions:
     properties:
       api_key:
         type: string
+      auto_ban:
+        description: whether DP-triggered disable is allowed
+        type: boolean
+      ban_reason:
+        description: reason for current disable
+        type: string
+      ban_until:
+        description: optional TTL for disable
+        type: string
       base_url:
         type: string
       createdAt:
         type: string
       deletedAt:
         $ref: '#/definitions/gorm.DeletedAt'
+      google_location:
+        type: string
+      google_project:
+        type: string
       group:
         description: routing group/tier
         type: string
@@ -128,6 +156,9 @@ definitions:
         type: string
       name:
         type: string
+      status:
+        description: active, auto_disabled, manual_disabled
+        type: string
       type:
         description: openai, anthropic, etc.
         type: string
@@ -177,6 +208,57 @@ info:
   title: EZ-API Control Plane
   version: 0.0.1
 paths:
+  /admin/features:
+    get:
+      description: Returns all feature flags stored in Redis (meta:features)
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/gin.H'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/gin.H'
+      security:
+      - AdminAuth: []
+      summary: List feature flags
+      tags:
+      - admin
+    put:
+      consumes:
+      - application/json
+      description: Updates selected feature flags (meta:features). Values are stored
+        as strings.
+      parameters:
+      - description: Feature map
+        in: body
+        name: request
+        required: true
+        schema:
+          type: object
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/gin.H'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/gin.H'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/gin.H'
+      security:
+      - AdminAuth: []
+      summary: Update feature flags
+      tags:
+      - admin
   /admin/masters:
     post:
       consumes:
@@ -209,6 +291,52 @@ paths:
       summary: Create a new master tenant
       tags:
       - admin
+  /admin/masters/{id}/keys:
+    post:
+      consumes:
+      - application/json
+      description: Issue a new access token (child key) for a specified master. The
+        key still belongs to the master; issuer is recorded as admin for audit.
+      parameters:
+      - description: Master ID
+        in: path
+        name: id
+        required: true
+        type: integer
+      - description: Key Request
+        in: body
+        name: request
+        required: true
+        schema:
+          $ref: '#/definitions/internal_api.IssueChildKeyRequest'
+      produces:
+      - application/json
+      responses:
+        "201":
+          description: Created
+          schema:
+            $ref: '#/definitions/gin.H'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/gin.H'
+        "403":
+          description: Forbidden
+          schema:
+            $ref: '#/definitions/gin.H'
+        "404":
+          description: Not Found
+          schema:
+            $ref: '#/definitions/gin.H'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/gin.H'
+      security:
+      - AdminAuth: []
+      summary: Issue a child key on behalf of a master
+      tags:
+      - admin
   /admin/models:
     get:
       description: Get a list of all registered models
@@ -334,6 +462,47 @@ paths:
       summary: Create a new provider
       tags:
       - admin
+  /admin/providers/{id}:
+    put:
+      consumes:
+      - application/json
+      description: Update provider attributes including status/auto-ban flags
+      parameters:
+      - description: Provider ID
+        in: path
+        name: id
+        required: true
+        type: integer
+      - description: Provider Info
+        in: body
+        name: provider
+        required: true
+        schema:
+          $ref: '#/definitions/github_com_ez-api_ez-api_internal_dto.ProviderDTO'
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/github_com_ez-api_ez-api_internal_model.Provider'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/gin.H'
+        "404":
+          description: Not Found
+          schema:
+            $ref: '#/definitions/gin.H'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/gin.H'
+      security:
+      - AdminAuth: []
+      summary: Update a provider
+      tags:
+      - admin
   /admin/sync/snapshot:
     post:
       description: Force full synchronization of DB state to Redis