feat(ipuaro): add session configuration

- Add SessionConfigSchema with persistIndefinitely, maxHistoryMessages, saveInputHistory
- Implement Session.truncateHistory() method for limiting message history
- Update HandleMessage to support history truncation and input history toggle
- Add config flow through useSession and App components
- Add 19 unit tests for SessionConfigSchema
- Update CHANGELOG.md and ROADMAP.md for v0.22.2

packages/ipuaro/src/shared/constants/config.ts

@@ -97,6 +97,15 @@ export const DisplayConfigSchema = z.object({
     progressBar: z.boolean().default(true),
 })
 
+/**
+ * Session configuration schema.
+ */
+export const SessionConfigSchema = z.object({
+    persistIndefinitely: z.boolean().default(true),
+    maxHistoryMessages: z.number().int().positive().default(100),
+    saveInputHistory: z.boolean().default(true),
+})
+
 /**
  * Full configuration schema.
  */
@@ -109,6 +118,7 @@ export const ConfigSchema = z.object({
     edit: EditConfigSchema.default({}),
     input: InputConfigSchema.default({}),
     display: DisplayConfigSchema.default({}),
+    session: SessionConfigSchema.default({}),
 })
 
 /**
@@ -123,6 +133,7 @@ export type UndoConfig = z.infer<typeof UndoConfigSchema>
 export type EditConfig = z.infer<typeof EditConfigSchema>
 export type InputConfig = z.infer<typeof InputConfigSchema>
 export type DisplayConfig = z.infer<typeof DisplayConfigSchema>
+export type SessionConfig = z.infer<typeof SessionConfigSchema>
 
 /**
  * Default configuration.