Create Foundations for Active Prompt Engine + Contributing MD (#263)

* Create Foundations for Active Prompt Engine + Contributing MD

This PR setups the foundations for the Active Prompt data model for Phase 2 of Active Agent.

This uses Rails Engines and adds test to be able to setup the initial foundation.

* Update CONTRIBUTING.MD

* Delete lib/active_prompt/engine.rb

* Delete lib/active_prompt/version.rb

* Delete lib/active_prompt.rb

* Delete lib/activeagent.rb

* Delete test/active_prompt_engine_test.rb

* Revert "Delete lib/activeagent.rb"

This reverts commit 1357769.

* Moved into separate project for now

---------

Co-authored-by: Justin Bowen <JusBowen@gmail.com>

Author: Josiassejod1

CONTRIBUTING.MD

@@ -0,0 +1,44 @@
+## Contributing to Active Agent
+
+Thanks for your interest in improving Active Agent! This guide covers the basics for setting up your environment, running tests, linting, and doing a quick local verification that things work.
+
+### Prerequisites
+- Ruby with Bundler installed
+- Google Chrome/Chromium (recommended for system tests via Cuprite)
+
+### Setup
+git clone https://github.com/activeagents/activeagent.git
+cd activeagent
+bundle install
+
+- Full suite:
+  bin/test
+  # or
+  bundle exec rake test
+  - Single file:
+ 
+  ruby -Itest test/generation_test.rb
+
+- Tests use Rails’ plugin test runner and a bundled dummy app under `test/dummy`.
+- External API calls are recorded with VCR, so you shouldn’t need API keys to run the suite.
+
+### Linting
+- bin/lint          # check
+- bin/lint --fix    # safe auto-correct
+- bin/lint -A       # auto-correct including unsafe### Quick local verification
+
+### Making changes
+1. Create a feature branch.
+2. Add tests for your change.
+3. Run `bin/test` and `bin/lint` until both pass cleanly.
+4. Open a pull request with a clear description of the change and motivation.
+
+### Recording or updating VCR cassettes (optional)
+If you need to re-record HTTP interactions for specific tests, set the necessary API keys in your environment and run only those tests. Please avoid committing sensitive data; VCR cassettes should only contain sanitized request/response data.
+
+### Community and support
+- Documentation: https://docs.activeagents.ai
+- Issues: https://github.com/activeagents/activeagent/issues
+- Discord: https://discord.com/invite/JRUxkkHKmh
+
+We appreciate your contributions—thank you!