feat: restructure ht-docker-tools repository with enhanced Deno support and NVM integration

- Removed Dockerfile and added multiple Dockerfiles for various tools (ClickHouse, MongoDB, MinIO, Caddy, Redis) with Deno runtime.
- Updated package.json to reflect new repository structure and versioning.
- Added comprehensive README and technical notes for architecture overview and usage.
- Implemented build and test scripts for streamlined image creation and validation.
- Introduced bash scripts for NVM functionality in Docker images.

readme.hints.md

@@ -1 +1,108 @@
- 
+# Technical Notes - ht-docker-tools
+
+## Architecture Overview
+
+This repository provides Docker images in two variants:
+
+1. **Official Base Images**: Extend official images with Deno runtime
+2. **Alpine Images**: Standalone Alpine-based with full NVM + Node.js + Deno stack
+
+## NVM Implementation (Alpine Images)
+
+NVM is a bash function, not a binary. This creates challenges in Docker contexts:
+
+### Three Context Solutions
+
+1. **Build-time (Dockerfile RUN commands)**
+   - Uses `bash-with-nvm` wrapper script as SHELL directive
+   - Loads NVM before executing each RUN command
+
+2. **Runtime (CI/CD bash -c commands)**
+   - `docker-entrypoint.sh` handles `bash -c` commands
+   - Injects bashrc sourcing automatically
+   - `ENV BASH_ENV=/etc/bash.bashrc` enables non-interactive shell support
+
+3. **Interactive shells**
+   - `/etc/bash.bashrc` configured with NVM initialization
+   - Works in interactive terminal sessions
+
+### Key Files
+
+- `image_support_files/bash-with-nvm` - Build-time NVM wrapper
+- `image_support_files/docker-entrypoint.sh` - Runtime NVM support
+- `/etc/bash.bashrc` - Created during build with NVM init
+
+## Official Base Image Considerations
+
+### ClickHouse (Debian-based)
+- Base: `clickhouse/clickhouse-server`
+- Deno installed via curl installer
+- Preserves original entrypoint
+
+### MongoDB (Debian-based)
+- Base: `mongo:latest`
+- Deno installed via curl installer
+- Preserves original entrypoint
+
+### MinIO (RHEL-based minimal)
+- Base: `minio/minio:latest`
+- Uses `microdnf` for package management
+- Requires USER switch (root for install, minio for runtime)
+
+### Caddy (Alpine-based)
+- Base: `caddy:latest`
+- Deno installed from Alpine edge repository
+- Already Alpine, so minimal modification needed
+
+### Redis (Debian-based)
+- Base: `redis:latest`
+- Deno installed via curl installer
+- Preserves original entrypoint
+
+## Alpine Package Availability
+
+| Tool | Package | Repository |
+|------|---------|------------|
+| MongoDB | `mongodb`, `mongodb-tools` | edge/community |
+| MinIO | `minio` | edge/community |
+| ClickHouse | `clickhouse` | edge/community |
+| Caddy | `caddy` | edge/community |
+| Redis | `redis` | main |
+| Deno | `deno` | edge/community |
+
+All Alpine images use `alpine:edge` to access community packages.
+
+## Version Information
+
+- NVM: v0.40.1
+- Node.js LTS: 20.18.2
+- Uses unofficial-builds.nodejs.org for musl (Alpine) compatibility
+
+## Multi-Architecture
+
+Alpine images support:
+- `linux/amd64` (x86_64)
+- `linux/arm64` (aarch64/Apple Silicon)
+
+Build with buildx:
+```bash
+docker buildx build --platform linux/amd64,linux/arm64 -f Dockerfile_xxx --push .
+```
+
+## CI/CD Integration
+
+The images work with npmci for automated building:
+```bash
+npmci docker login
+npmci docker build
+npmci docker test
+npmci docker push code.foss.global
+```
+
+## Testing
+
+Run the test script to verify:
+- Deno availability in all images
+- NVM availability in Alpine images
+- Node.js version in Alpine images
+- NVM version switching capability