feat: add Qwen International provider with regional endpoints (#8)

* feat: add Qwen International and US provider catalogs

* refactor: merge qwen-us into qwen-intl with regions support

* refactor: merge regional providers into single files with regions

Merge qwen-intl.toml into qwen.toml with [provider.regions] for
intl (Singapore) and us (Virginia) endpoints.

Merge minimax-cn.toml into minimax.toml with [provider.regions.china]
including separate api_key_env for China endpoint.

Uses new RegionConfig table format instead of simple string URLs.

providers/minimax-cn.toml

@@ -1,113 +0,0 @@
-# MiniMax (China) — https://minimaxi.com
-# Models: 8 (same models as international, different endpoint)
-
-[provider]
-id = "minimax-cn"
-display_name = "MiniMax (China)"
-api_key_env = "MINIMAX_CN_API_KEY"
-base_url = "https://api.minimaxi.com/v1"
-key_required = true
-
-[[models]]
-id = "MiniMax-M2.7"
-display_name = "MiniMax M2.7"
-tier = "frontier"
-context_window = 204800
-max_output_tokens = 131072
-input_cost_per_m = 0.30
-output_cost_per_m = 1.20
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "MiniMax-M2.7-highspeed"
-display_name = "MiniMax M2.7 Highspeed"
-tier = "smart"
-context_window = 204800
-max_output_tokens = 131072
-input_cost_per_m = 0.30
-output_cost_per_m = 1.20
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "minimax-text-01"
-display_name = "MiniMax Text 01"
-tier = "smart"
-context_window = 1048576
-max_output_tokens = 16384
-input_cost_per_m = 1.00
-output_cost_per_m = 3.00
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "MiniMax-M2.5"
-display_name = "MiniMax M2.5"
-tier = "frontier"
-context_window = 1048576
-max_output_tokens = 16384
-input_cost_per_m = 1.10
-output_cost_per_m = 4.40
-supports_tools = true
-supports_vision = true
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "MiniMax-M2.5-highspeed"
-display_name = "MiniMax M2.5 Highspeed"
-tier = "smart"
-context_window = 1048576
-max_output_tokens = 16384
-input_cost_per_m = 0.80
-output_cost_per_m = 3.20
-supports_tools = true
-supports_vision = true
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "MiniMax-M2.1"
-display_name = "MiniMax M2.1"
-tier = "smart"
-context_window = 1048576
-max_output_tokens = 16384
-input_cost_per_m = 1.00
-output_cost_per_m = 3.00
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "abab6.5-chat"
-display_name = "ABAB 6.5 Chat"
-tier = "balanced"
-context_window = 245760
-max_output_tokens = 8192
-input_cost_per_m = 0.50
-output_cost_per_m = 1.50
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = []
-
-[[models]]
-id = "abab7-chat"
-display_name = "ABAB 7 Chat"
-tier = "smart"
-context_window = 524288
-max_output_tokens = 16384
-input_cost_per_m = 0.80
-output_cost_per_m = 2.40
-supports_tools = true
-supports_vision = true
-supports_streaming = true
-aliases = []

providers/minimax.toml

@@ -1,13 +1,18 @@
-# MiniMax (International) — https://minimax.io
+# MiniMax — https://minimax.io
 # Models: 8
+# Regions: international (default), china (minimaxi.com)
 
 [provider]
 id = "minimax"
-display_name = "MiniMax (International)"
+display_name = "MiniMax"
 api_key_env = "MINIMAX_API_KEY"
 base_url = "https://api.minimax.io/v1"
 key_required = true
 
+[provider.regions.china]
+base_url = "https://api.minimaxi.com/v1"
+api_key_env = "MINIMAX_CN_API_KEY"
+
 [[models]]
 id = "MiniMax-M2.7"
 display_name = "MiniMax M2.7"

providers/qwen.toml

@@ -1,5 +1,6 @@
 # Qwen / Alibaba — https://dashscope.aliyuncs.com
 # Models: 11
+# Regions: china (default), intl (Singapore), us (Virginia)
 
 [provider]
 id = "qwen"
@@ -8,6 +9,12 @@ api_key_env = "DASHSCOPE_API_KEY"
 base_url = "https://dashscope.aliyuncs.com/compatible-mode/v1"
 key_required = true
 
+[provider.regions.intl]
+base_url = "https://dashscope-intl.aliyuncs.com/compatible-mode/v1"
+
+[provider.regions.us]
+base_url = "https://dashscope-us.aliyuncs.com/compatible-mode/v1"
+
 [[models]]
 id = "qwen-max"
 display_name = "Qwen Max"