refactor(pipeline): restructure config, add PromptDirectory, consolidate SQLite layer (#217)

* Refactor ApplicationOptions to separate config concerns

* add prompt dir app option

* readability updates: remove magic numbers, update comments

* codebase formatting

* Update docs

* Extract argument parsing, timer out of

tooling/pipeline/src/services/sqlite/sqlite_export_service.cc

@@ -7,11 +7,12 @@
 
 #include <memory>
 
-SqliteExportService::SqliteExportService()
-    : date_time_provider_(std::make_unique<SystemDateTimeProvider>()) {}
+SqliteExportService::SqliteExportService(const ApplicationOptions& options)
+    : date_time_provider_(std::make_unique<SystemDateTimeProvider>()),
+      output_path_(options.pipeline.output_path) {}
 
 SqliteExportService::~SqliteExportService() {
   if (db_handle_ != nullptr) {
     RollbackAndCloseNoThrow();
   }
-}
+}