feat(llm): support Kimi Code models (kimi-for-coding, k3) (#117)

Kimi Code's OpenAI-compatible endpoint (https://api.kimi.com/coding/v1)
rejects any explicit temperature other than the default (1) with a 400
"invalid temperature: only 1 is allowed for this model". Add the
kimi-for-coding* and k3* model ID prefixes to modelForbidsTemperature so
the client omits the field, matching the existing handling for OpenAI
reasoning models.

Also wire the documented --temperature CLI flag into the agent config:
it was parsed into flags.Temp but never consumed, so every run kept the
hardcoded deterministic default (0). The continue command takes no CLI
flags and keeps the fixed default.

Author: jkyberneees

cmd/odek/main.go

@@ -1332,7 +1332,7 @@ func run(args []string) error {
 		NoProjectFile:    resolved.NoAgents,
 		Thinking:         resolved.Thinking,
 		ThinkingBudget:   f.ThinkingBudget,
-		Temperature:      0, // deterministic by default; override with --temperature
+		Temperature:      f.Temp, // 0 = deterministic default; negative = omit from request
 		Tools:            tools,
 		ToolFilter:       odek.ToolFilterConfig{Enabled: resolved.Tools.Enabled, Disabled: resolved.Tools.Disabled},
 		SandboxCleanup:   sandboxCleanup,
@@ -2404,7 +2404,7 @@ func continueCmd(args []string) error {
 		UntrustedWrapper: func(source, content string) string { return wrapUntrusted(context.Background(), source, content) },
 		NoProjectFile:    resolved.NoAgents,
 		Thinking:         resolved.Thinking,
-		Temperature:      0, // deterministic by default; override with --temperature
+		Temperature:      0, // deterministic by default; continue takes no CLI flags
 		Tools:            tools,
 		ToolFilter:       odek.ToolFilterConfig{Enabled: resolved.Tools.Enabled, Disabled: resolved.Tools.Disabled},
 		SandboxCleanup:   sandboxCleanup,

internal/llm/client.go

@@ -81,12 +81,14 @@ func (c *Client) sendsThinkingObject() bool {
 // temperature parameter. OpenAI reasoning models (o1/o3/o4 families and the
 // gpt-5 series) only accept the default temperature (1); sending any other
 // value — including odek's deterministic default 0 — returns a 400
-// "unsupported_value" error. Matching is model-name-based and
+// "unsupported_value" error. Kimi Code models (kimi-for-coding*, k3*) behave
+// the same way: the endpoint answers 400 "invalid temperature: only 1 is
+// allowed for this model". Matching is model-name-based and
 // provider-agnostic, since OpenAI-compatible proxies serving these model
 // IDs enforce the same constraint.
 func modelForbidsTemperature(model string) bool {
 	m := strings.ToLower(model)
-	for _, prefix := range []string{"o1", "o3", "o4", "gpt-5"} {
+	for _, prefix := range []string{"o1", "o3", "o4", "gpt-5", "kimi-for-coding", "k3"} {
 		if strings.HasPrefix(m, prefix) {
 			return true
 		}

internal/llm/client_test.go

@@ -1038,10 +1038,11 @@ func TestClient_IsAnthropic(t *testing.T) {
 	}
 }
 
-// OpenAI reasoning models (o1/o3/o4, gpt-5 family) reject any explicit
-// temperature other than the default (1) with a 400. The client must omit
-// the field for those models while still sending odek's deterministic
-// default (0) to models that accept it.
+// OpenAI reasoning models (o1/o3/o4, gpt-5 family) and Kimi Code models
+// (kimi-for-coding*, k3*) reject any explicit temperature other than the
+// default (1) with a 400. The client must omit the field for those models
+// while still sending odek's deterministic default (0) to models that
+// accept it.
 func TestCall_OmitsTemperatureForReasoningModels(t *testing.T) {
 	cases := []struct {
 		model        string
@@ -1053,9 +1054,15 @@ func TestCall_OmitsTemperatureForReasoningModels(t *testing.T) {
 		{"o1-preview", false},
 		{"o4-mini", false},
 		{"GPT-5-MINI", false}, // case-insensitive
+		{"kimi-for-coding", false},
+		{"kimi-for-coding-highspeed", false},
+		{"k3", false},
+		{"k3-256k", false},
+		{"Kimi-For-Coding", false}, // case-insensitive
 		{"gpt-4o-mini", true},
 		{"deepseek-chat", true},
 		{"claude-sonnet-4-5", true},
+		{"kimi-latest", true}, // Moonshot platform models accept temperature
 	}
 
 	for _, tc := range cases {