feat: tests for new flags API

added missing files for schema update

public/openapi/write/flags.yaml

@@ -0,0 +1,38 @@
+post:
+  tags:
+    - flags
+  summary: create a flag
+  description: This operation creates a new flag (with a report). If a flag already exists for a given user or post, a report will be appended to the existing flag. The response will change depending on the privilege level of the calling uid. Privileged users (moderators and up) will see the full flag details, whereas regular users will see an empty (but successful) response.
+  requestBody:
+    required: true
+    content:
+      application/json:
+        schema:
+          type: object
+          properties:
+            type:
+              type: string
+              enum: ['post', 'user']
+              example: 'post'
+            id:
+              type: number
+              example: 2
+            reason:
+              type: string
+              example: 'Spam'
+          required:
+            - type
+            - id
+            - reason
+  responses:
+    '200':
+      description: flag successfully created
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              status:
+                $ref: ../components/schemas/Status.yaml#/Status
+              response:
+                $ref: ../components/schemas/FlagObject.yaml#/FlagObject

public/openapi/write/flags/flagId.yaml

@@ -0,0 +1,67 @@
+get:
+  tags:
+    - flags
+  summary: get a flag
+  description: This operation retrieve a flag's details. It is only available to privileged users (that is, moderators, global moderators, and administrators).
+  parameters:
+    - in: path
+      name: flagId
+      schema:
+        type: number
+      required: true
+      description: a valid flag id
+      example: 1
+  responses:
+    '200':
+      description: flag successfully retrieved
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              status:
+                $ref: ../../components/schemas/Status.yaml#/Status
+              response:
+                $ref: ../../components/schemas/FlagObject.yaml#/FlagObject
+put:
+  tags:
+    - flags
+  summary: update a flag
+  description: This operation updates a flag's details. It is only available to privileged users (that is, moderators, global moderators, and administrators).
+  parameters:
+    - in: path
+      name: flagId
+      schema:
+        type: number
+      required: true
+      description: a valid flag id
+      example: 1
+  requestBody:
+    required: true
+    content:
+      application/json:
+        schema:
+          type: object
+          properties:
+            datetime:
+              type: number
+              example: 1625859990035
+            state:
+              type: string
+              enum: ['open', 'wip', 'resolved', 'rejected']
+              example: 'wip'
+            assignee:
+              type: number
+              example: 1
+  responses:
+    '200':
+      description: flag successfully updated
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              status:
+                $ref: ../../components/schemas/Status.yaml#/Status
+              response:
+                $ref: ../../components/schemas/FlagObject.yaml#/FlagHistoryObject