docs: align wiki with canonical repository documentation
refactor(wiki): rename pages for GitHub wiki compatibility Rename all pages to remove leading numbers and use standard naming: - 01-Getting-Started → Getting-Started - 02-Architecture → Architecture - 03-Contributing → Contributing - 04-Testing → Testing - 05-Lifecycle-Events → Lifecycle-Events - 06-Observability → Observability - 07-Webhooks → Webhooks - 08-Roadmap → Roadmap - 09-Upgrade-6.0 → Upgrade-6.0 - 10-Upgrade-5.1 → Upgrade-5.1 - 11-Upgrade-5.0 → Upgrade-5.0 - 12-Upgrade-4.0 → Upgrade-4.0 - 13-Upgrade-7.0 → Upgrade-7.0 Update Home.md with new page names for internal wiki links.