chore(main): release 0.49.0 (#795)

🤖 I have created a release *beep* *boop*
---


##
[0.49.0](https://github.com/agentclientprotocol/claude-agent-acp/compare/v0.48.0...v0.49.0)
(2026-06-22)


### Features

* Update to claude-agent-sdk 0.3.185
([#798](https://github.com/agentclientprotocol/claude-agent-acp/issues/798))
([8dc8c86](8dc8c86426))


### Bug Fixes

* Deduplicate streamed assistant blocks by content
([#800](https://github.com/agentclientprotocol/claude-agent-acp/issues/800))
([960f62d](960f62d765))
* Infer 1M context from model descriptions
([#799](https://github.com/agentclientprotocol/claude-agent-acp/issues/799))
([508453c](508453c288))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: acp-release-bot[bot] <246668977+acp-release-bot[bot]@users.noreply.github.com>

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.48.0"
+  ".": "0.49.0"
 }