Add missing pub.dev metadata, CHANGELOGs, LICENSE files, and example/ dirs

[MelbourneDeveloper]

Problem

None of the packages have the metadata pub.dev needs to score well. Several packages are missing required files entirely. This blocks production publishing.

What's Missing

1. pubspec.yaml metadata — ALL packages

No package has any of these fields:

Field	Purpose	Status
homepage:	Links to project site on pub.dev	MISSING from all 12 packages
topics:	pub.dev search/discovery tags	MISSING from all 12 packages
issue_tracker:	Links to GitHub Issues	MISSING from all 12 packages
documentation:	Links to docs	MISSING from all 12 packages

What to add to every pubspec.yaml:

homepage: https://github.com/MelbourneDeveloper/dart_node
issue_tracker: https://github.com/MelbourneDeveloper/dart_node/issues
documentation: https://github.com/MelbourneDeveloper/dart_node/tree/main/packages/<pkg_name>#readme
topics:
  - nodejs       # adjust per package
  - interop
  - javascript

2. CHANGELOG.md — missing or useless

Completely missing:

• packages/dart_jsx/CHANGELOG.md — does not exist
• packages/dart_node_vsix/CHANGELOG.md — does not exist

Exist but useless — every other package has this exact content for every version:

## 0.11.0-beta
- Early release

## 0.10.0-beta
- Early release

## 0.9.0-beta
- Early release

This tells users nothing. Each entry should describe what actually changed.

3. LICENSE — missing from 2 packages

• packages/dart_jsx/LICENSE — does not exist
• packages/dart_node_vsix/LICENSE — does not exist

All other packages have MIT LICENSE files. These two need the same.

4. example/ directory — missing from 11 of 12 packages

pub.dev checks for an example/ directory inside each package and scores accordingly.

Package	Has example/?
reflux	YES (has example/counter.dart)
dart_node_core	NO
dart_node_express	NO
dart_node_react	NO
dart_node_react_native	NO
dart_node_ws	NO
dart_node_better_sqlite3	NO
dart_node_mcp	NO
dart_jsx	NO
dart_logging	NO
dart_node_coverage	NO
dart_node_vsix	NO

Each package needs at minimum an example/example.dart (or example/<pkg_name>_example.dart) showing basic usage.

5. dart_logging — wrong SDK + missing nadz

File: packages/dart_logging/pubspec.yaml

Two issues:

• SDK constraint is ^3.7.2 — every other package uses ^3.10.0
• Missing required nadz dependency (project rules: "All packages require: austerity (linting), nadz (Result types)")

6. dart_jsx — wrong repository URL

File: packages/dart_jsx/pubspec.yaml

repository: https://github.com/user/dart_node/tree/main/packages/dart_jsx

Should be:

repository: https://github.com/MelbourneDeveloper/dart_node/tree/main/packages/dart_jsx

Checklist

• Add homepage, topics, issue_tracker, documentation to all 12 pubspec.yaml files
• Create CHANGELOG.md for dart_jsx and dart_node_vsix
• Rewrite all existing CHANGELOGs with actual version descriptions
• Create LICENSE (MIT) for dart_jsx and dart_node_vsix
• Add example/ directory with working example to all 11 packages missing one
• Fix dart_logging SDK constraint from ^3.7.2 to ^3.10.0
• Add nadz dependency to dart_logging
• Fix dart_jsx repository URL to use MelbourneDeveloper