diff --git a/air.toml b/air.toml
new file mode 100644
index 0000000000..31a4aa2c78
--- /dev/null
+++ b/air.toml
@@ -0,0 +1,48 @@
+root = "."
+testdata_dir = "testdata"
+tmp_dir = ".air"
+
+[build]
+  args_bin = []
+  bin = "./cliproxyapi++"
+  cmd = "go build -o ./cliproxyapi++ ./cmd/server"
+  delay = 1000
+  exclude_dir = ["assets", "tmp", "vendor", "testdata", "node_modules", ".git", "docs/node_modules", ".air"]
+  exclude_file = []
+  exclude_regex = ["_test.go", "_test_ts.go"]
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = ["pkg/llmproxy", "cmd/server", "internal", "sdk"]
+  include_ext = ["go"]
+  include_file = []
+  kill_delay = "0s"
+  log = "build-errors.log"
+  poll = false
+  poll_interval = 0
+  rerun = false
+  rerun_delay = 500
+  send_interrupt = false
+  stop_on_error = false
+
+[color]
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  main_only = false
+  time = false
+
+[misc]
+  clean_on_exit = true
+
+[screen]
+  clear_on_rebuild = false
+  keep_scroll = true
+
+[watcher]
+  watch_exts = ["go", "yaml", "yml", "json", "toml"]
+  ignore_paths = [".git", "node_modules", "vendor", "tmp", ".air"]
diff --git a/pkg/llmproxy/config/sdk_config.go b/pkg/llmproxy/config/sdk_config.go
deleted file mode 100644
index 63e25a079b..0000000000
--- a/pkg/llmproxy/config/sdk_config.go
+++ /dev/null
@@ -1,13 +0,0 @@
-// Package config provides configuration management for the CLI Proxy API server.
-// It handles loading and parsing YAML configuration files, and provides structured
-// access to application settings including server port, authentication directory,
-// debug settings, proxy configuration, and API keys.
-package config
-
-import internalconfig "github.com/router-for-me/CLIProxyAPI/v6/internal/config"
-
-// SDKConfig is an alias to internal/config.SDKConfig.
-type SDKConfig = internalconfig.SDKConfig
-
-// StreamingConfig is an alias to internal/config.StreamingConfig.
-type StreamingConfig = internalconfig.StreamingConfig
diff --git a/pkg/llmproxy/config/sdk_types.go b/pkg/llmproxy/config/sdk_types.go
new file mode 100644
index 0000000000..bf4fb90ecf
--- /dev/null
+++ b/pkg/llmproxy/config/sdk_types.go
@@ -0,0 +1,43 @@
+// Package config provides configuration types for CLI Proxy API.
+// This file contains SDK-specific config types that are used by internal/* packages.
+package config
+
+// SDKConfig represents the SDK-level configuration embedded in Config.
+type SDKConfig struct {
+	// ProxyURL is the URL of an optional proxy server to use for outbound requests.
+	ProxyURL string `yaml:"proxy-url" json:"proxy-url"`
+
+	// ForceModelPrefix requires explicit model prefixes (e.g., "teamA/gemini-3-pro-preview")
+	// to target prefixed credentials. When false, unprefixed model requests may use prefixed
+	// credentials as well.
+	ForceModelPrefix bool `yaml:"force-model-prefix" json:"force-model-prefix"`
+
+	// RequestLog enables or disables detailed request logging functionality.
+	RequestLog bool `yaml:"request-log" json:"request-log"`
+
+	// APIKeys is a list of keys for authenticating clients to this proxy server.
+	APIKeys []string `yaml:"api-keys" json:"api-keys"`
+
+	// PassthroughHeaders controls whether upstream response headers are forwarded to downstream clients.
+	// Default is false (disabled).
+	PassthroughHeaders bool `yaml:"passthrough-headers" json:"passthrough-headers"`
+
+	// Streaming configures server-side streaming behavior (keep-alives and safe bootstrap retries).
+	Streaming StreamingConfig `yaml:"streaming" json:"streaming"`
+
+	// NonStreamKeepAliveInterval controls how often blank lines are emitted for non-streaming responses.
+	// <= 0 disables keep-alives. Value is in seconds.
+	NonStreamKeepAliveInterval int `yaml:"nonstream-keepalive-interval,omitempty" json:"nonstream-keepalive-interval,omitempty"`
+}
+
+// StreamingConfig holds server streaming behavior configuration.
+type StreamingConfig struct {
+	// KeepAliveSeconds controls how often the server emits SSE heartbeats (": keep-alive\n\n").
+	// <= 0 disables keep-alives. Default is 0.
+	KeepAliveSeconds int `yaml:"keepalive-seconds,omitempty" json:"keepalive-seconds,omitempty"`
+
+	// BootstrapRetries controls how many times the server may retry a streaming request before any bytes are sent,
+	// to allow auth rotation / transient recovery.
+	// <= 0 disables bootstrap retries. Default is 0.
+	BootstrapRetries int `yaml:"bootstrap-retries,omitempty" json:"bootstrap-retries,omitempty"`
+}