Fork/list/resume + cinfig options + auto pagination binding (#56)

* update for new unstable schema:
- session fork/list/resume
- session config options

* Add corresponding APIs to client and agent parts to support new session capabilities.

#45 in progress

* Add SequenceToPaginatedResponseAdapter that transparently converts a sequence into paginated responses.

* Add setPaginatedRequestHandler for handling paginated requests

* Add test for listing sessions

* Lazy automatic pagination on client side via cold flow

* Add eviction of orphaned iterators with timeouts

* Fix compilation after merge

* Update API dump

---------

Co-authored-by: Dennis Ushakov <dennis.ushakov@gmail.com>

Author: nerzhulart

acp-ktor-test/src/commonTest/kotlin/com/agentclientprotocol/SimpleAgentTest.kt

@@ -3,9 +3,9 @@
 # Format: SHA256 FILENAME
 
 # Stable schemas
-796e38e275a1587b5a711a4b4508cb69825448b70e79b14bdb4256b24688b89d  schema/schema.json
+07f2cdfd7814496ebdab83fb7417787fa1dddc6276b11cd31b51be2f8ba95f2b  schema/schema.json
 f242b95def9a9cbfddd2db1a45d8d3d489ad1b4f564a1322547c90a94c647637  schema/meta.json
 
 # Unstable schemas
-4a886716877f97bc24c4c7f1ae24c9ad06a779107afbdf0718110fc50b5135b7  schema/schema.unstable.json
-8ad80116767e0921970b28766c214d7921268653544d5996a8e2814e1244d4d2  schema/meta.unstable.json
+75d180b9c589cd7d79a5a9cbb6680d52e1bce71238839871441d30c753b497a9  schema/schema.unstable.json
+e87ae9b3fc3b05f88da6dfc06d003e5263d6a041b1c934ed13b83173b39ed111  schema/meta.unstable.json

acp-model/.schema-checksums

@@ -1 +1 @@
-e23620fe29cb24555db8fb8b58b641b680788e5f
+37d12f4bb4b0cf1dca60421d48cb17decc119b8e

acp-model/.schema-revision

@@ -11,60 +11,59 @@ This file tracks the version of the Agent Client Protocol schema that the model
 
 ### Stable Schema
 - **schema.json**
-  - Commit: `e23620fe29cb24555db8fb8b58b641b680788e5f`
-  - Date: 2025-12-01 17:17:19 +0100
-  - SHA256: `796e38e275a1587b5a711a4b4508cb69825448b70e79b14bdb4256b24688b89d`
+  - Commit: `37d12f4bb4b0cf1dca60421d48cb17decc119b8e`
+  - Date: 2025-12-20 18:25:51 +0000
+  - SHA256: `07f2cdfd7814496ebdab83fb7417787fa1dddc6276b11cd31b51be2f8ba95f2b`
   - URL: https://github.com/agentclientprotocol/agent-client-protocol/blob/main/schema/schema.json
 
 - **meta.json**
-  - Commit: `e23620fe29cb24555db8fb8b58b641b680788e5f`
-  - Date: 2025-12-01 17:17:19 +0100
+  - Commit: `37d12f4bb4b0cf1dca60421d48cb17decc119b8e`
+  - Date: 2025-12-20 18:25:51 +0000
   - SHA256: `f242b95def9a9cbfddd2db1a45d8d3d489ad1b4f564a1322547c90a94c647637`
   - URL: https://github.com/agentclientprotocol/agent-client-protocol/blob/main/schema/meta.json
 
 ### Unstable Schema
 - **schema.unstable.json**
-  - Commit: `e23620fe29cb24555db8fb8b58b641b680788e5f`
-  - Date: 2025-12-01 17:17:19 +0100
-  - SHA256: `4a886716877f97bc24c4c7f1ae24c9ad06a779107afbdf0718110fc50b5135b7`
+  - Commit: `37d12f4bb4b0cf1dca60421d48cb17decc119b8e`
+  - Date: 2025-12-20 18:25:51 +0000
+  - SHA256: `75d180b9c589cd7d79a5a9cbb6680d52e1bce71238839871441d30c753b497a9`
   - URL: https://github.com/agentclientprotocol/agent-client-protocol/blob/main/schema/schema.unstable.json
 
 - **meta.unstable.json**
-  - Commit: `e23620fe29cb24555db8fb8b58b641b680788e5f`
-  - Date: 2025-12-01 17:17:19 +0100
-  - SHA256: `8ad80116767e0921970b28766c214d7921268653544d5996a8e2814e1244d4d2`
+  - Commit: `37d12f4bb4b0cf1dca60421d48cb17decc119b8e`
+  - Date: 2025-12-20 18:25:51 +0000
+  - SHA256: `e87ae9b3fc3b05f88da6dfc06d003e5263d6a041b1c934ed13b83173b39ed111`
   - URL: https://github.com/agentclientprotocol/agent-client-protocol/blob/main/schema/meta.unstable.json
 
 **Note:** All types from unstable schema must be marked with `@UnstableApi` annotation.
 
 ## Last Updated
-- Date: 2025-12-01
+- Date: 2025-12-20
 - Updated by: Manual schema synchronization
 
 ## Changes in This Version
-- Added `Implementation` type for client/agent identification
-- Added `SessionCapabilities` type (empty, for future expansion)
-- Added `clientInfo` field to `InitializeRequest`
-- Added `agentInfo` field to `InitializeResponse`
-- Added `sessionCapabilities` field to `AgentCapabilities`
-- Changed `AvailableCommandInput` from data class to sealed class with `Unstructured` variant
-- Added `_meta` field to `ToolCallContent.Terminal`
-- Terminal types are now stable (removed unstable warning)
+- Added `session/fork` method to agent methods (unstable)
+- Added `session/list` method to agent methods (unstable)
+- Added `session/resume` method to agent methods (unstable)
+- Added `session/set_config_option` method to agent methods (unstable)
+- Added `session/set_model` method to agent methods (unstable)
+- Added `$/cancel_request` protocol method (unstable)
+- Updated stable schema with bug fixes and improvements
 
 ## Verification
 To verify the schema files match:
 ```bash
 # Stable schemas
 curl -s https://raw.githubusercontent.com/agentclientprotocol/agent-client-protocol/main/schema/schema.json | sha256sum
-# Expected: 796e38e275a1587b5a711a4b4508cb69825448b70e79b14bdb4256b24688b89d
+# Expected: 07f2cdfd7814496ebdab83fb7417787fa1dddc6276b11cd31b51be2f8ba95f2b
 
 curl -s https://raw.githubusercontent.com/agentclientprotocol/agent-client-protocol/main/schema/meta.json | sha256sum
 # Expected: f242b95def9a9cbfddd2db1a45d8d3d489ad1b4f564a1322547c90a94c647637
 
 # Unstable schemas
 curl -s https://raw.githubusercontent.com/agentclientprotocol/agent-client-protocol/main/schema/schema.unstable.json | sha256sum
-# Expected: 4a886716877f97bc24c4c7f1ae24c9ad06a779107afbdf0718110fc50b5135b7
+# Expected: 75d180b9c589cd7d79a5a9cbb6680d52e1bce71238839871441d30c753b497a9
 
 curl -s https://raw.githubusercontent.com/agentclientprotocol/agent-client-protocol/main/schema/meta.unstable.json | sha256sum
-# Expected: 8ad80116767e0921970b28766c214d7921268653544d5996a8e2814e1244d4d2
+# Expected: e87ae9b3fc3b05f88da6dfc06d003e5263d6a041b1c934ed13b83173b39ed111
 ```