revert(sqlite): remove RC4 Legacy database support

apps/desktop/src/lib/connection/__tests__/connectionErrorHints.spec.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { appendConnectionErrorHints, isSqliteMissingEncryptionPasswordFailure } from "@/lib/connection/connectionErrorHints";
+import { appendConnectionErrorHints } from "@/lib/connection/connectionErrorHints";
 import type { ConnectionConfig } from "@/types/database";
 
 function mysqlConfig(urlParams: string | undefined): ConnectionConfig {
@@ -40,14 +40,6 @@ const t = (key: string) => {
 };
 
 describe("appendConnectionErrorHints", () => {
-  it("recognizes an encrypted SQLite file that was first opened without a password", () => {
-    const config = { ...mysqlConfig(undefined), db_type: "sqlite" as const, host: "/tmp/encrypted.db", port: 0 };
-
-    expect(isSqliteMissingEncryptionPasswordFailure(config, "Selected file is not a valid SQLite database file.")).toBe(true);
-    expect(isSqliteMissingEncryptionPasswordFailure({ ...config, password: "wrong" }, "Selected file is not a valid SQLite database file.")).toBe(false);
-    expect(isSqliteMissingEncryptionPasswordFailure(config, "SQLite connection failed: unable to open database file")).toBe(false);
-  });
-
   it("adds a MySQL TLS hint for non-disabled TLS failures", () => {
     const message = appendConnectionErrorHints(mysqlConfig("ssl-mode=preferred"), "MySQL connection failed: TLS handshake failed", t);
 

apps/desktop/src/lib/connection/connectionErrorHints.ts

@@ -72,11 +72,6 @@ export function isMysqlMissingPasswordFailure(config: ConnectionConfig, message:
   return /access denied for user[\s\S]*using password:\s*no/i.test(message);
 }
 
-export function isSqliteMissingEncryptionPasswordFailure(config: ConnectionConfig, message: string): boolean {
-  if (config.db_type !== "sqlite" || config.password) return false;
-  return /Selected file is not a valid SQLite database file/i.test(message);
-}
-
 export function isJdbcMissingRuntimeDependencyError(message: string): boolean {
   return /Missing Java class|NoClassDefFoundError|ClassNotFoundException/i.test(message);
 }