chore: remove remaining Hetzner references across codebase

Deleted:
- DOCKER_REGISTRY_SETUP.md, QUICK_START_CICD.md (legacy CI/CD docs)
- docs/ULOAD-DEPLOYMENT.md (Hetzner VPS deployment guide)
- scripts/get-ssh-key.sh, scripts/remove-coolify-references.sh (legacy scripts)

Updated Hetzner → MinIO references in:
- shared-storage (package.json, README, client.ts, types.ts)
- App CLAUDE.md files (mukke, storage, planta, picture)
- .claude/GUIDELINES.md, sveltekit-web.md guideline
- TROUBLESHOOTING.md, SETUP_TEMPLATES.md (replaced IPs with placeholders)
- GIT_WORKFLOW.md, COMMANDS.md
- services/matrix-project-doc-bot/CLAUDE.md

Remaining Hetzner mentions are in historical devlogs/audits and docs
that list Hetzner as a hosting alternative (not as active infrastructure).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/shared-storage/package.json

@@ -2,7 +2,7 @@
 	"name": "@manacore/shared-storage",
 	"version": "0.1.0",
 	"private": true,
-	"description": "S3-compatible object storage client for Manacore monorepo (MinIO local, Hetzner production)",
+	"description": "S3-compatible object storage client for Manacore monorepo (MinIO)",
 	"main": "./dist/index.js",
 	"types": "./dist/index.d.ts",
 	"exports": {