Agent friendliness

[fmell]

No description provided.

[Copilot]

Pull request overview

This PR improves local/Codespaces developer experience by adjusting dev server/networking defaults, updating container and devcontainer setup, and refreshing documentation to match the new workflows and ports.

Changes:

• Expose Vite dev server on all interfaces and wire Docker Compose to use .env files plus correct backend port 8001.
• Update backend local container to Python 3.12 + install OpenJDK 21; adjust production Dockerfile Java installation and JAVA_HOME.
• Improve developer docs and devcontainer bootstrap (copy .env templates, install backend pg extras, add VS Code debug extension).

Reviewed changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
frontend/vite.config.ts	Bind dev server to all interfaces for container/Codespaces friendliness.
frontend/package.json	Move/bump knip to devDependencies.
frontend/package-lock.json	Lockfile updates reflecting knip bump and dependency graph changes.
frontend/Dockerfile.local	Remove ad-hoc npm install --save @types/... step.
frontend/Dockerfile	Remove ad-hoc npm install --save @types/... step.
frontend/.env.example	Replace placeholder secrets with commented guidance + empty values.
docker-compose.yml	Add env files, backend dependency, and move backend port mapping to 8001.
backend/src/acidwatch_api/app.py	Allow CORS from Codespaces forwarded URLs via origin regex.
backend/Dockerfile.local	Upgrade to Python 3.12-slim, install JDK 21, run on port 8001.
backend/Dockerfile	Use headless JDK 21 and update JAVA_HOME.
README.md	Add Docker Compose run instructions and update backend/frontend run commands/ports.
.devcontainer/install-dependencies.sh	Copy env templates, install backend with pg extra, set Codespaces URLs.
.devcontainer/devcontainer.json	Add ms-python.debugpy extension customization.
.devcontainer/DockerFile	Update Node setup script to Node 22.x.

Files not reviewed (1)

• frontend/package-lock.json: Language not supported

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