feat: add permanent whitelist list endpoint and rename DB table

- Add GET /api/whitelist/perm/list to list permanent whitelisted entries
- Implement permWhitelistListHandler with API key verification
- Rename permanent_whitelist table to perm_whitelist for consistency
- Update default DB path from ./data to /data
- Comment out build job in CI/CD workflow

openapi.yaml

@@ -74,7 +74,7 @@ paths:
                 ip:
                   type: string
                   description: The IP address to whitelist
-                  example: "203.0.113.10"
+                  example: "1.2.3.4"
                 ttl_seconds:
                   type: integer
                   description: Time-to-live in seconds
@@ -185,6 +185,32 @@ paths:
                 example: "entry already exists"
         '500':
           description: Internal error
+  
+  /api/whitelist/perm/list:
+    get:
+      summary: List permanent whitelisted IPs
+      description: List all currently active permanent whitelisted IPs.
+      operationId: listTempWhitelist
+      responses:
+        '200':
+          description: List of permanent whitelisted IPs
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    ip:
+                      type: string
+                      example: "1.2.3.4"
+                    reason:
+                      type: string
+                      example: "my laptop"
+        '401':
+          description: Unauthorized — invalid API token
+        '500':
+          description: Internal error — database failure
 
   /api/whitelist/perm/{entry}:
     delete: