feat(mail): add governed POP3 legacy import

webui/src/api/mail.ts

@@ -296,7 +296,7 @@ export async function createMailServerProfile(settings: ApiSettings, payload: Ma
 export type MailServerProfileUpdatePayload = Partial<MailServerProfilePayload> & { clear_imap?: boolean };
 
 export type MailServerEndpointPayload = {
-  protocol: "smtp" | "imap";
+  protocol: "smtp" | "imap" | "pop3";
   name: string;
   config: Record<string, unknown>;
   inherit_to_lower_scopes?: boolean | null;
@@ -304,6 +304,77 @@ export type MailServerEndpointPayload = {
   is_active?: boolean;
 };
 
+export type MailPop3ServerConfig = {
+  host?: string | null;
+  port?: number | null;
+  security?: MailSecurity | string;
+  timeout_seconds?: number;
+  max_message_bytes?: number;
+  max_batch_bytes?: number;
+  preview_body_lines?: number;
+  legacy_import_enabled?: boolean;
+  allow_delete_after_import?: boolean;
+};
+
+export type MailPop3ServerEndpoint = Omit<MailServerEndpoint, "protocol" | "config"> & {
+  protocol: "pop3";
+  config: MailPop3ServerConfig;
+};
+
+export type MailPop3MessagePreview = {
+  message_number: number;
+  uidl: string;
+  subject?: string | null;
+  from_header?: string | null;
+  to_header?: string | null;
+  date?: string | null;
+  message_id?: string | null;
+  size_bytes: number;
+  body_preview?: string | null;
+  already_imported: boolean;
+};
+
+export type MailPop3PreviewResponse = {
+  profile_id: string;
+  server_id: string;
+  transport_revision: string;
+  host: string;
+  port: number;
+  security: string;
+  message_count: number;
+  mailbox_size_bytes: number;
+  delete_after_import_allowed: boolean;
+  messages: MailPop3MessagePreview[];
+};
+
+export type MailPop3ImportRecord = {
+  id: string;
+  profile_id: string;
+  pop3_server_id: string;
+  transport_revision: string;
+  provider_uidl: string;
+  message_id?: string | null;
+  subject?: string | null;
+  from_header?: string | null;
+  to_header?: string | null;
+  date?: string | null;
+  body_preview?: string | null;
+  size_bytes: number;
+  raw_sha256: string;
+  status: string;
+  imported_at: string;
+  deletion_requested: boolean;
+  deletion_status: string;
+  deletion_attempted_at?: string | null;
+  deletion_error?: string | null;
+};
+
+export type MailPop3ImportResponse = {
+  imports: MailPop3ImportRecord[];
+  duplicate_uidls: string[];
+  deletion_status: string;
+};
+
 export type MailCredentialCreatePayload = {
   name: string;
   description?: string | null;
@@ -503,6 +574,63 @@ export async function testMailProfileImap(
   );
 }
 
+export async function testMailProfilePop3(
+  settings: ApiSettings,
+  profileId: string,
+  serverId: string,
+  credentialId?: string | null
+): Promise<MailConnectionTestResponse> {
+  return apiPost<MailConnectionTestResponse>(
+    settings,
+    apiPath(`/api/v1/mail/profiles/${encodeURIComponent(profileId)}/test-pop3`, {
+      server_id: serverId,
+      credential_id: credentialId
+    })
+  );
+}
+
+export async function previewMailProfilePop3(
+  settings: ApiSettings,
+  profileId: string,
+  payload: { server_id: string; credential_id?: string | null; limit?: number }
+): Promise<MailPop3PreviewResponse> {
+  return apiPostJson<MailPop3PreviewResponse>(
+    settings,
+    `/api/v1/mail/profiles/${encodeURIComponent(profileId)}/pop3/preview`,
+    payload
+  );
+}
+
+export async function importMailProfilePop3(
+  settings: ApiSettings,
+  profileId: string,
+  payload: {
+    server_id: string;
+    credential_id?: string | null;
+    expected_transport_revision: string;
+    uidls: string[];
+    delete_after_import?: boolean;
+  }
+): Promise<MailPop3ImportResponse> {
+  return apiPostJson<MailPop3ImportResponse>(
+    settings,
+    `/api/v1/mail/profiles/${encodeURIComponent(profileId)}/pop3/import`,
+    payload
+  );
+}
+
+export async function listMailPop3Imports(
+  settings: ApiSettings,
+  profileId?: string | null,
+  limit = 100
+): Promise<MailPop3ImportRecord[]> {
+  const response = await apiFetch<{ imports: MailPop3ImportRecord[] }>(
+    settings,
+    apiPath("/api/v1/mail/pop3/imports", { profile_id: profileId, limit })
+  );
+  return response.imports;
+}
+
 export async function listMailProfileImapFolders(
   settings: ApiSettings,
   profileId: string,