chore: release 0.1.12

publish with a dry run no longer refuses every clean change: diagnostics
are read by severity as Forward's commit dialog reads them, errors
refuse with Forward's message in the exception, warnings are reported
and do not block. Also upsert_classic, which reads devices back after
Forward's batch upsert.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019Kbxab7ihjPntGAmnsZtqG

Author: captainpacket

CHANGELOG.md

@@ -3,7 +3,7 @@
 All notable changes to this project are documented here. The format follows
 [Keep a Changelog](https://keepachangelog.com/) and the project uses SemVer.
 
-## [Unreleased]
+## [0.1.12] - 2026-09-11
 
 ### Fixed
 

src/forward_sdk/_version.py

@@ -1 +1 @@
-__version__ = "0.1.11"
+__version__ = "0.1.12"