feat: add named payment processors and MONEI provider

[elpete]

Description

Implements the cbpayments 1.0 Provider/Processor architecture. A Provider is a WireBox implementation such as StripeProvider, MoneiProvider, or MockProvider; a Processor is one named Provider plus configuration. Applications use a provider-neutral PaymentService facade across hosted checkout, payment intents, capture, refunds, setup intents, customers, and verified webhooks.

This revision also:

• requires full WireBox Provider IDs and removes the duplicate providerTypes registry
• adds an independently packageable MONEI Provider with a real REST transport
• adds a shared provider-neutral webhook taxonomy and typed ColdBox interception points
• expands the Provider, Processor, contract, Stripe, MONEI, webhook, configuration, security, and testing guides
• removes the internal architecture/delivery and release-note artifacts
• packages and boots the core and MONEI candidates together in a clean consumer harness

This PR retains the existing development history and targets development directly.

Closes #1.

Type of change

• New feature
• Breaking pre-1.0 API terminology cleanup
• Documentation update

Verification

• Final local source: BoxLang 1 native and CFML compatibility, Lucee 6/7, and Adobe ColdFusion 2023/2025 each passed 72 specs with 0 failures and 0 errors
• MONEI request translation, REST transport, response normalization, failure mapping, configuration, signatures, callbacks, and shared events are covered by fake-client and local HTTP-stub tests
• Formatting was applied and is idempotent; formatting check, Markdown lint, YAML parse, metadata validation, dependency pins, secret scan, and git diff --check pass
• Core release dry run and clean packaged-consumer boot pass
• Independently packaged MONEI module installs, registers, and executes with the packaged core
• Pushed SHA 27fff8a passes the GitHub engine and package matrix
• Pushed SHA 27fff8a passes the repository-secret-backed Stripe test-mode contract

The live Stripe job accepts only an sk_test_ key and runs only for trusted same-repository pull requests. Fork and Dependabot pull requests do not receive the secret. No live MONEI credential is required or used by this PR.