chore(release): hawk-sdk-python 0.2.0

Bump VERSION 0.1.0 -> 0.2.0 and fold the Unreleased changelog entries
under a dated [0.2.0] section.

Breaking changes in 0.2.0:
- list_sessions() now returns list[SessionSummary]; limit/offset removed
  (the daemon's GET /v1/sessions returns a bare JSON array, so the old
  PaginatedResponse could never validate a real response).
- create_session() removed from both HawkClient and AsyncHawkClient
  (the daemon has no POST /v1/sessions; sessions are created implicitly
  by POST /v1/chat and the method always returned a 404).
- Message.tool_result alias fixed to tool_results to match the daemon.
- __version__ synced with pyproject.toml.

Other: User-Agent header on every outbound request; OSS-standard files
(CHANGELOG, CONTRIBUTING, SECURITY, CoC, templates); expanded
.gitignore/.editorconfig.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Patel230

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.0] — 2026-07-14
+
 ### Changed
 - **BREAKING: `list_sessions()` now returns `list[SessionSummary]`** and no
   longer accepts `limit`/`offset`. The daemon's `GET /v1/sessions` returns a

VERSION

@@ -1 +1 @@
-0.1.0
+0.2.0