Add SQLite profile repository and Qt SQL dependency

src/profile_repository.h

@@ -0,0 +1,35 @@
+#ifndef ORBITHUB_PROFILE_REPOSITORY_H
+#define ORBITHUB_PROFILE_REPOSITORY_H
+
+#include <QString>
+
+#include <optional>
+#include <vector>
+
+struct Profile
+{
+    qint64 id;
+    QString name;
+};
+
+class ProfileRepository
+{
+public:
+    ProfileRepository();
+    ~ProfileRepository();
+
+    QString initError() const;
+
+    std::vector<Profile> listProfiles(const QString& searchQuery = QString()) const;
+    std::optional<Profile> createProfile(const QString& name) const;
+    bool updateProfile(qint64 id, const QString& name) const;
+    bool deleteProfile(qint64 id) const;
+
+private:
+    QString m_connectionName;
+    QString m_initError;
+
+    bool initializeDatabase();
+};
+
+#endif