feat: cloud-init supports all documented KubeSolo CLI flags

Add missing flags (--local-storage-shared-path, --debug, --pprof-server,
--portainer-edge-id, --portainer-edge-key, --portainer-edge-async) so all
10 documented KubeSolo parameters can be configured via cloud-init YAML.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to KubeSolo OS are documented in this file.
 Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 versioning follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Added
+- Cloud-init: support all documented KubeSolo CLI flags (`--local-storage-shared-path`, `--debug`, `--pprof-server`, `--portainer-edge-id`, `--portainer-edge-key`, `--portainer-edge-async`)
+- Cloud-init: `full-config.yaml` example showing all supported parameters
+- Cloud-init: KubeSolo configuration reference table in docs/cloud-init.md
+
 ## [0.1.0] - 2026-02-12
 
 First release with all 5 design-doc phases complete. ISO boots and runs K8s pods.