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proto/webui.proto

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+syntax = "proto3";
+
+package webui;
+
+// Login request from Web UI
+message WebUiLoginRequest {
+  string username = 1; // 1-32 chars
+  string password = 2; // 1-64 chars (plain or hashed)
+}
+
+// Login response
+message WebUiLoginResponse {
+  bool success = 1;
+  optional string token = 2; // session/JWT when success
+  optional string error = 3; // error message when failed
+}
+
+// Logout response
+message WebUiLogoutResponse {
+    bool success = 1;
+    string error = 2;  
+}
+
+// User data structure
+message WebUiUser {
+  string username = 1;      // 1-32 chars
+  bytes  password_hash = 2; // 32 bytes (SHA-256)
+}
+
+// User list (max 5 users)
+message WebUiUserList {
+  repeated WebUiUser users = 1;
+}
+
+// Request to get users
+message GetUsersRequest {
+}
+
+// Response with users
+message GetUsersResponse {
+  repeated string usernames = 1; // List of usernames
+}
+
+// Request to add user
+message AddUserRequest {
+  string username = 1;
+  string password = 2;
+}
+
+// Response to add user
+message AddUserResponse {
+  bool success = 1;
+  optional string error = 2; // e.g., "table full", "user exists"
+}
+
+// Request to delete user
+message DeleteUserRequest {
+  string username = 1;
+}
+
+// Response to delete user
+message DeleteUserResponse {
+  bool success = 1;
+  optional string error = 2; // e.g., "user not found"
+}
+
+// Request to update user password
+message UpdateUserPasswordRequest {
+  string username = 1;
+  string new_password = 2;
+}
+
+// Response to update user password
+message UpdateUserPasswordResponse {
+  bool success = 1;
+  optional string error = 2; // e.g., "user not found"
+}
+
+// Auth check response
+message WebUiAuthCheckResponse {
+  bool authenticated = 1;
+  optional string username = 2;
+}