refactor: update provider keys

Gemfile.lock

@@ -47,7 +47,7 @@ GEM
       async (>= 2.0)
     base64 (0.3.0)
     benchmark (0.5.0)
-    bigdecimal (4.0.1)
+    bigdecimal (4.1.1)
     cgi (0.5.1)
     concurrent-ruby (1.3.6)
     connection_pool (3.0.2)
@@ -263,7 +263,7 @@ CHECKSUMS
   async-pool (0.11.2) sha256=0a43a17b02b04d9c451b7d12fafa9a50e55dc6dd00d4369aca00433f16a7e3ed
   base64 (0.3.0) sha256=27337aeabad6ffae05c265c450490628ef3ebd4b67be58257393227588f5a97b
   benchmark (0.5.0) sha256=465df122341aedcb81a2a24b4d3bd19b6c67c1530713fd533f3ff034e419236c
-  bigdecimal (4.0.1) sha256=8b07d3d065a9f921c80ceaea7c9d4ae596697295b584c296fe599dd0ad01c4a7
+  bigdecimal (4.1.1) sha256=1c09efab961da45203c8316b0cdaec0ff391dfadb952dd459584b63ebf8054ca
   cgi (0.5.1) sha256=e93fcafc69b8a934fe1e6146121fa35430efa8b4a4047c4893764067036f18e9
   concurrent-ruby (1.3.6) sha256=6b56837e1e7e5292f9864f34b69c5a2cbc75c0cf5338f1ce9903d10fa762d5ab
   connection_pool (3.0.2) sha256=33fff5ba71a12d2aa26cb72b1db8bba2a1a01823559fb01d29eb74c286e62e0a

lib/llm_gateway.rb

@@ -139,7 +139,28 @@ def self.reset_configuration!
     @configured_clients = {}
   end
 
-  # Register built-in providers
+  # Register built-in providers (canonical keys)
+  ProviderRegistry.register("anthropic_messages",
+    client: Clients::Anthropic,
+    adapter: Adapters::Anthropic::MessagesAdapter)
+
+  ProviderRegistry.register("openai_completions",
+    client: Clients::OpenAI,
+    adapter: Adapters::OpenAI::ChatCompletionsAdapter)
+
+  ProviderRegistry.register("openai_responses",
+    client: Clients::OpenAI,
+    adapter: Adapters::OpenAI::ResponsesAdapter)
+
+  ProviderRegistry.register("groq_completions",
+    client: Clients::Groq,
+    adapter: Adapters::Groq::ChatCompletionsAdapter)
+
+  ProviderRegistry.register("openai_codex",
+    client: Clients::OpenAI,
+    adapter: Adapters::OpenAICodex::ResponsesAdapter)
+
+  # Backward-compatible aliases (deprecated)
   ProviderRegistry.register("anthropic_apikey_messages",
     client: Clients::Anthropic,
     adapter: Adapters::Anthropic::MessagesAdapter)

lib/llm_gateway/adapters/structs.rb

@@ -10,7 +10,7 @@ class BaseStruct < Dry::Struct
 end
 
 class AssistantStreamEvent < BaseStruct
-  EventType = Types::Coercible::Symbol.enum(:text_start, :text_delta, :text_end, :tool_start, :tool_delta, :tool_end, :reasoning_start, :reasoning_delta, :reasoning_end, :thinking_start, :thinking_delta, :thinking_end)
+  EventType = Types::Coercible::Symbol.enum(:text_start, :text_delta, :text_end, :tool_start, :tool_delta, :tool_end, :reasoning_start, :reasoning_delta, :reasoning_end)
 
   attribute :type, EventType
   attribute :delta, Types::Coercible::String.default { "" }
@@ -30,9 +30,6 @@ class AssistantStreamReasoningEvent < AssistantStreamEvent
   attribute :content_index, Types::Integer
 end
 
-# Backward-compatible alias
-AssistantStreamThinkingEvent = AssistantStreamReasoningEvent
-
 class AssistantStreamMessageEvent < BaseStruct
   EventType = Types::Coercible::Symbol.enum(:message_start, :message_delta, :message_end)
 

lib/llm_gateway/client.rb

@@ -69,16 +69,16 @@ def self.build_adapter_from_model(model, api_key: nil, refresh_token: nil, expir
 
       if api == "responses"
         config = {
-          provider: "#{provider}_apikey_responses",
+          provider: "#{provider}_responses",
           model_key: model
         }
         config[:api_key] = api_key if api_key
         LlmGateway.build_provider(config)
       else
         provider_key = case provider
-        when "anthropic" then "anthropic_apikey_messages"
-        when "openai" then "openai_apikey_completions"
-        when "groq" then "groq_apikey_completions"
+        when "anthropic" then "anthropic_messages"
+        when "openai" then "openai_completions"
+        when "groq" then "groq_completions"
         end
         config = { provider: provider_key, model_key: model }
         config[:api_key] = api_key if api_key