gemini-suggestions, tests-fail

app.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'sinatra'
 require 'json'
 require 'yaml'
@@ -37,16 +39,14 @@ def determine_language(params, headers)
   # Parse Accept-Language header
   if headers['HTTP_ACCEPT_LANGUAGE']
     accepted_langs = headers['HTTP_ACCEPT_LANGUAGE']
-                      .split(',')
-                      .map { |lang| lang.split(';').first.downcase.strip }
+                     .split(',')
+                     .map { |lang| lang.split(';').first.downcase.strip }
 
     # Check for exact matches first
     accepted_langs.each do |lang|
       return lang if RESPONSES[lang]
-    end
 
-    # Check for language family matches (e.g., 'nb' or 'nn' -> 'no')
-    accepted_langs.each do |lang|
+      # Check for language family matches (e.g., 'nb' or 'nn' -> 'no')
       case lang
       when /^zh/ # Chinese variants
         return 'zh'
@@ -113,7 +113,7 @@ get '/' do
   no_response = get_no_response(lang)
 
   case request.accept.first&.to_s
-  when /application\/json/
+  when %r{application/json}
     content_type :json
     {
       answer: no_response,
@@ -152,8 +152,8 @@ get '/api/no' do
     language: lang,
     language_name: get_language_name(lang),
     timestamp: Time.now.iso8601,
-    service: "No as a Service",
-    version: "2.0.0"
+    service: 'No as a Service',
+    version: '2.0.0'
   }.to_json
 end
 
@@ -165,7 +165,7 @@ get '/api/no/:lang' do
     content_type :json
     status 404
     return {
-      error: "Language not supported",
+      error: 'Language not supported',
       requested: lang,
       available: get_available_languages.map { |l| l[:code] },
       timestamp: Time.now.iso8601
@@ -178,8 +178,8 @@ get '/api/no/:lang' do
     language: lang,
     language_name: get_language_name(lang),
     timestamp: Time.now.iso8601,
-    service: "No as a Service",
-    version: "2.0.0"
+    service: 'No as a Service',
+    version: '2.0.0'
   }.to_json
 end
 
@@ -187,7 +187,7 @@ end
 get '/health' do
   content_type :json
   {
-    status: "healthy",
+    status: 'healthy',
     languages_loaded: RESPONSES.keys.size,
     timestamp: Time.now.iso8601
   }.to_json
@@ -199,7 +199,7 @@ get '/*' do
   no_response = get_no_response(lang)
 
   case request.accept.first&.to_s
-  when /application\/json/
+  when %r{application/json}
     content_type :json
     {
       answer: no_response,