Feat/reduce image size

[PttCodingMan]

No description provided.

[Copilot]

Pull Request Overview

This PR aims to reduce the Docker build context and image size by adding a .dockerignore, bumping the Alpine base image, and cleaning up README documentation.

• Add .dockerignore to exclude unnecessary files from the build context
• Update Dockerfile to use python:3.12-alpine3.22
• Refine README grammar, link formatting, and diagram labels

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
README_ENG.md	Grammar and link adjustments, consistent formatting
README.md	Simplified diagram labels to English-only
Dockerfile	Changed base image from python:3.12-alpine3.18 to alpine3.22
.dockerignore	New file to exclude docs, caches, and other unneeded files

Comments suppressed due to low confidence (1)

Dockerfile:2

• The tag 'python:3.12-alpine3.22' does not correspond to a released Alpine version (current is alpine3.18); this will cause build failures.

FROM python:3.12-alpine3.22