fix: add ocean booking link candidates query

firstleg/src/main/resources/openapi/ocean-bookings-v1.yaml

@@ -28,6 +28,25 @@ paths:
       parameters: [{$ref: '#/components/parameters/OceanBookingId'}, {$ref: '#/components/parameters/IdempotencyKey'}]
       requestBody: {required: true, content: {application/json: {schema: {$ref: '#/components/schemas/ReleaseRequest'}}}}
       responses: {'200': {description: RELEASED detail}}
+  /api/platform/v1/ocean-bookings/link-candidates:
+    get:
+      summary: Page released booking requirement candidates for one container
+      description: Requires platform:firstleg:ocean-booking:list. Returns only exact warehouse, channel and fixed container specification matches with remainingQuantity greater than zero. Allocation counts are calculated by one bounded set query; booking detail calls are not used.
+      x-permission: platform:firstleg:ocean-booking:list
+      parameters:
+        - {name: warehouseId, in: query, required: true, schema: {type: integer, format: int64, minimum: 1}}
+        - {name: channelCode, in: query, required: true, schema: {type: string, maxLength: 64}}
+        - {name: containerType, in: query, required: true, schema: {type: string, maxLength: 32}}
+        - {name: capacityCbm, in: query, required: true, schema: {type: number, exclusiveMinimum: true, minimum: 0}}
+        - {name: maxWeightKg, in: query, required: true, schema: {type: number, exclusiveMinimum: true, minimum: 0}}
+        - {name: page, in: query, required: false, schema: {type: integer, format: int64, minimum: 1, default: 1}}
+        - {name: size, in: query, required: false, schema: {type: integer, format: int64, minimum: 1, maximum: 200, default: 20}}
+      responses:
+        '200':
+          description: Business envelope containing a bounded candidate page
+          content:
+            application/json:
+              schema: {$ref: '#/components/schemas/LinkCandidateResponse'}
   /api/platform/v1/ocean-bookings/channels:
     get:
       summary: List ACTIVE channels for an origin warehouse
@@ -94,6 +113,38 @@ components:
         channelName: {type: string}
         priceModel: {type: string}
         pricingTaxModes: {type: array, items: {type: string}}
+    LinkCandidate:
+      type: object
+      required: [oceanBookingId, bookingNo, requirementId, containerType, capacityCbm, maxWeightKg, requiredQuantity, allocatedQuantity, remainingQuantity, customerName, warehouseName, channelName]
+      properties:
+        oceanBookingId: {type: string, pattern: '^[0-9]+$'}
+        bookingNo: {type: string}
+        requirementId: {type: string, pattern: '^[0-9]+$'}
+        containerType: {type: string}
+        capacityCbm: {type: number}
+        maxWeightKg: {type: number}
+        requiredQuantity: {type: integer, minimum: 1}
+        allocatedQuantity: {type: integer, format: int64, minimum: 0}
+        remainingQuantity: {type: integer, format: int64, minimum: 1}
+        customerName: {type: string}
+        warehouseName: {type: string}
+        channelName: {type: string}
+    LinkCandidatePage:
+      type: object
+      required: [records, page, size, total, pages]
+      properties:
+        records: {type: array, items: {$ref: '#/components/schemas/LinkCandidate'}}
+        page: {type: integer, format: int64, minimum: 1}
+        size: {type: integer, format: int64, minimum: 1}
+        total: {type: integer, format: int64, minimum: 0}
+        pages: {type: integer, format: int64, minimum: 0}
+    LinkCandidateResponse:
+      type: object
+      required: [code, data]
+      properties:
+        code: {type: string, example: '200'}
+        message: {type: string, nullable: true}
+        data: {$ref: '#/components/schemas/LinkCandidatePage'}
     Detail:
       type: object
       required: [oceanBooking, parties, containerRequirements, containers, histories]