feat(astrolabe): add Nextcloud App Store deployment automation

Add complete CI/CD pipeline for automated Astrolabe app releases:
- GitHub Actions workflow for build, sign, and publish
- Makefile for app store package creation
- Version synchronization between info.xml and package.json
- CHANGELOG.md with v0.1.0 release notes

feat: configure commitizen monorepo with independent versioning

Enable independent versioning for three components using scope-based commits:
- MCP Server (feat(mcp) or unscoped): v* tags, updates pyproject.toml + Chart.yaml:appVersion
- Helm Chart (feat(helm)): nextcloud-mcp-server-* tags, updates Chart.yaml:version
- Astrolabe App (feat(astrolabe)): astrolabe-v* tags, updates info.xml + package.json

Changes:
- Add .cz.toml configs for Astrolabe and Helm chart
- Update root pyproject.toml with scope filtering and tag ignores
- Create bump helper scripts (bump-mcp.sh, bump-helm.sh, bump-astrolabe.sh)
- Add CONTRIBUTING.md with version management documentation
- Create component-specific changelogs
- Configure appVersion/version separation for Helm chart

This allows each component to release independently while maintaining
proper version tracking and changelog generation.

third_party/astrolabe/CHANGELOG.md

@@ -1,12 +1,29 @@
-# Changelog
+# Changelog - Astrolabe
 
-All notable changes to this project will be documented in this file.
+All notable changes to the Astrolabe Nextcloud app will be documented in this file.
 
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [0.1.0] - 2024-12-19
+
 ### Added
 
-- First release
+- Initial alpha release
+- Semantic search across Notes, Files, Calendar, Deck, and Contacts
+- Integration with Nextcloud Unified Search
+- Personal settings UI for MCP server configuration
+- Admin settings for global MCP server URL
+- OAuth PKCE authentication flow
+- Vector visualization of semantic relationships
+- Hybrid search combining semantic and keyword matching
+- Background content indexing
+- Support for Nextcloud 30-32
+
+### Notes
+
+- This is an alpha release intended for early adopters and testing
+- Requires external MCP server deployment
+- See documentation for setup: https://github.com/cbcoutinho/nextcloud-mcp-server