Add missing includes, update readme

pipeline/README.md

@@ -1,6 +1,6 @@
 # Biergarten Pipeline
 
-Biergarten Pipeline is a C++23 command-line tool that reads a local city list, resolves contextual enrichment for each sampled city through an injected service, and generates brewery names and descriptions. The current code samples up to four locations per run, then uses either Gemma 4 or the mock generator to produce the output.
+Biergarten Pipeline is a C++20 command-line tool that reads a local city list, resolves contextual enrichment for each sampled city through an injected service, and generates brewery names and descriptions. The current code samples up to four locations per run, then uses either Gemma 4 or the mock generator to produce the output.
 
 ## Tested Hardware & OS
 

pipeline/includes/biergarten_data_generator.h

@@ -54,7 +54,7 @@ class BiergartenDataGenerator {
    /**
     * @brief Load locations from JSON and sample cities.
     *
-    * @return Vector of sampled locations capped at 30 entries.
+    * @return Vector of sampled locations capped at 4 entries.
     */
    static std::vector<Location> QueryCitiesWithCountries();
 

pipeline/includes/data_generation/llama_generator_helpers.h

@@ -6,7 +6,9 @@
  * @brief Shared helper APIs used by LlamaGenerator translation units.
  */
 
+#include <cstddef>
 #include <string>
+#include <string_view>
 #include <utility>
 
 struct llama_model;

pipeline/src/biergarten_data_generator/query_cities_with_countries.cpp

@@ -7,6 +7,7 @@
 
 #include <algorithm>
 #include <filesystem>
+#include <iterator>
 #include <random>
 
 #include "biergarten_data_generator.h"