新增sql连接，目前支持mysql、sqlite、oracle连接以及相关数据库操作

Omnitool.pro

@@ -0,0 +1,66 @@
+QT       += core gui widgets sql printsupport
+
+TARGET = Omnitool
+TEMPLATE = app
+
+DEFINES += QT_DEPRECATED_WARNINGS
+
+SOURCES += main.cpp \
+    src/dialogs/ElaDatabaseConnectionDialog.cpp \
+    src/dialogs/DatabaseConnectionConfigDialog.cpp \
+    src/mainwindow/mainwindow.cpp \
+    src/utils/configmanager.cpp \
+    src/pages/DatabaseManagerPage.cpp \
+    src/utils/logmanager.cpp \
+    src/models/EditableSqlModel.cpp \
+    src/connectors/DatabaseConnector.cpp \
+    src/connectors/MySQLConnector.cpp \
+    src/connectors/PostgreSQLConnector.cpp \
+    src/connectors/SQLiteConnector.cpp \
+    src/connectors/SQLServerConnector.cpp \
+    src/connectors/OracleConnector.cpp
+
+HEADERS += src/dialogs/ElaDatabaseConnectionDialog.h \
+    src/dialogs/DatabaseConnectionConfigDialog.h \
+    src/mainwindow/mainwindow.h \
+    src/utils/configmanager.h \
+    src/pages/DatabaseManagerPage.h \
+    src/utils/logmanager.h \
+    src/models/EditableSqlModel.h \
+    src/connectors/DatabaseConnector.h \
+    src/connectors/MySQLConnector.h \
+    src/connectors/PostgreSQLConnector.h \
+    src/connectors/SQLiteConnector.h \
+    src/connectors/SQLServerConnector.h \
+    src/connectors/OracleConnector.h
+
+RESOURCES += resources.qrc
+
+CONFIG += c++17
+CONFIG += debug_and_release
+
+# Compiler warnings (MSVC)
+win32-msvc {
+    QMAKE_CXXFLAGS += /W3
+}
+
+# Compiler warnings (MinGW/GCC) - kept for compatibility
+win32-g++ {
+    QMAKE_CXXFLAGS += -Wall -Wextra
+    QMAKE_LFLAGS += -fno-use-linker-plugin
+}
+
+INCLUDEPATH += src
+INCLUDEPATH += $$PWD/3rd/ElaWidgetTools/include
+INCLUDEPATH += $$PWD/3rd/qscintilla/include
+
+win32 {
+    LIBS += -L$$PWD/3rd/ElaWidgetTools/lib -lElaWidgetTools
+    LIBS += -L$$PWD/3rd/qscintilla/lib -lqscintilla2_qt6
+    LIBS += -ld3d11 -ldxgi
+}
+
+DESTDIR = $$PWD/bin
+OBJECTS_DIR = $$PWD/build
+MOC_DIR = $$PWD/build
+RCC_DIR = $$PWD/build