feat(athena): add temperature support to council member schema

Allow per-member temperature overrides in council config. Adds temperature field to CouncilMemberSchema (0-2 range), CouncilMemberConfig type, and auto-generated JSON schema.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/agents/athena/types.ts

@@ -2,6 +2,7 @@ export interface CouncilMemberConfig {
   model: string
   variant?: string
   name?: string
+  temperature?: number
 }
 
 export interface CouncilConfig {

src/config/schema/athena.test.ts

@@ -20,6 +20,7 @@ describe("CouncilMemberSchema", () => {
       model: "openai/gpt-5.3-codex",
       variant: "high",
       name: "analyst-a",
+      temperature: 0.3,
     }
 
     //#when
@@ -110,11 +111,48 @@ describe("CouncilMemberSchema", () => {
     //#then
     expect(parsed.variant).toBeUndefined()
     expect(parsed.name).toBeUndefined()
+    expect(parsed.temperature).toBeUndefined()
+  })
+
+  test("accepts member config with temperature", () => {
+    //#given
+    const config = { model: "openai/gpt-5.3-codex", temperature: 0.5 }
+
+    //#when
+    const result = CouncilMemberSchema.safeParse(config)
+
+    //#then
+    expect(result.success).toBe(true)
+    if (result.success) {
+      expect(result.data.temperature).toBe(0.5)
+    }
+  })
+
+  test("rejects temperature below 0", () => {
+    //#given
+    const config = { model: "openai/gpt-5.3-codex", temperature: -0.1 }
+
+    //#when
+    const result = CouncilMemberSchema.safeParse(config)
+
+    //#then
+    expect(result.success).toBe(false)
+  })
+
+  test("rejects temperature above 2", () => {
+    //#given
+    const config = { model: "openai/gpt-5.3-codex", temperature: 2.1 }
+
+    //#when
+    const result = CouncilMemberSchema.safeParse(config)
+
+    //#then
+    expect(result.success).toBe(false)
   })
 
   test("rejects member config with unknown fields", () => {
     //#given
-    const config = { model: "openai/gpt-5.3-codex", temperature: 0.2 }
+    const config = { model: "openai/gpt-5.3-codex", unknownField: true }
 
     //#when
     const result = CouncilMemberSchema.safeParse(config)

src/config/schema/athena.ts

@@ -14,6 +14,7 @@ export const CouncilMemberSchema = z.object({
   model: ModelStringSchema,
   variant: z.string().optional(),
   name: z.string().optional(),
+  temperature: z.number().min(0).max(2).optional(),
 }).strict()
 
 export const CouncilConfigSchema = z.object({