replace SQLite geo pipeline with curated in-memory locations

pipeline/includes/json_handling/json_loader.h

@@ -2,16 +2,15 @@
 #define BIERGARTEN_PIPELINE_JSON_HANDLING_JSON_LOADER_H_
 
 #include <string>
+#include <vector>
 
-#include "database/database.h"
-#include "json_handling/stream_parser.h"
+#include "models/location.h"
 
-/// @brief Loads world-city JSON data into SQLite through streaming parsing.
+/// @brief Loads curated world locations from a JSON file into memory.
 class JsonLoader {
   public:
-   /// @brief Parses a JSON file and writes country/state/city rows into db.
-   static void LoadWorldCities(const std::string& json_path,
-                               SqliteDatabase& db);
+   /// @brief Parses a JSON array file and returns all location records.
+   static std::vector<Location> LoadLocations(const std::string& filepath);
 };
 
 #endif  // BIERGARTEN_PIPELINE_JSON_HANDLING_JSON_LOADER_H_

pipeline/includes/json_handling/stream_parser.h

@@ -1,52 +0,0 @@
-#ifndef BIERGARTEN_PIPELINE_JSON_HANDLING_STREAM_PARSER_H_
-#define BIERGARTEN_PIPELINE_JSON_HANDLING_STREAM_PARSER_H_
-
-#include <functional>
-#include <string>
-
-#include "database/database.h"
-
-// Forward declaration to avoid circular dependency
-class SqliteDatabase;
-
-/// @brief In-memory representation of one parsed city entry.
-struct CityRecord {
-   int id;
-   int state_id;
-   int country_id;
-   std::string name;
-   double latitude;
-   double longitude;
-};
-
-/// @brief Streaming SAX parser that emits city records during traversal.
-class StreamingJsonParser {
-  public:
-   /// @brief Parses file_path and invokes callbacks for city rows and progress.
-   static void Parse(const std::string& file_path, SqliteDatabase& db,
-                     std::function<void(const CityRecord&)> on_city,
-                     std::function<void(size_t, size_t)> on_progress = nullptr);
-
-  private:
-   /// @brief Mutable SAX handler state while traversing nested JSON arrays.
-   struct ParseState {
-      int current_country_id = 0;
-      int current_state_id = 0;
-
-      CityRecord current_city = {};
-      bool building_city = false;
-      std::string current_key;
-
-      int array_depth = 0;
-      int object_depth = 0;
-      bool in_countries_array = false;
-      bool in_states_array = false;
-      bool in_cities_array = false;
-
-      std::function<void(const CityRecord&)> on_city;
-      std::function<void(size_t, size_t)> on_progress;
-      size_t bytes_processed = 0;
-   };
-};
-
-#endif  // BIERGARTEN_PIPELINE_JSON_HANDLING_STREAM_PARSER_H_