chore: bump version to 1.3.1

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,20 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.1] - 2025-12-31
+
+### Changed
+
+- Simplified configuration: all settings now read from environment variables/.env only
+- Removed Docker socket fallback for container operations (Portainer API is now required)
+- Updated default search provider to SearXNG
+
+### Removed
+
+- `src/credentials.py` - credentials now managed via environment variables
+- Docker socket fallback methods from Portainer client
+- Unused search API settings (Brave, Google)
+
 ## [1.3.0] - 2025-12-31
 
 ### Added

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "core-api"
-version = "1.3.0"
+version = "1.3.1"
 description = "Core Code API - Infrastructure management and tools API"
 readme = "README.md"
 requires-python = ">=3.12"