ENTSO-E agent

[Copilot]

Adds an ENTSO-E protocol extension that fetches day-ahead electricity price data from the ENTSO-E Transparency Platform API and stores it as historical datapoints per linked attribute.

Description

New module: entsoe/

• EntsoeAgent — Agent asset with securityToken (required) and baseURL (optional) attributes
• EntsoeAgentLink — Link config holding the EIC zone code (validated against EIC format regex)
• EntsoeProtocol — Polls the ENTSO-E REST API on a 1-hour schedule; parses the Publication_MarketDocument XML response via JAXB/StAX, extracts per-period price points, and writes them as historical datapoints; performs a health-check on connect and sets ConnectionStatus accordingly
• PublicationMarketDocument — JAXB model for the ENTSO-E XML response
• EntsoeAgentModelProvider — Registers the agent with the OpenRemote asset model
• EntsoeProtocolTest — Groovy integration tests covering XML parsing, datapoint extraction, and polling behaviour

Build: aligned to OpenRemote manager 1.20.0 / Gradle 9.4.0

Checklist

• 1. Acceptance criteria of the linked issue(s) are met
• 2. Tests are written and all tests pass
• 3. Changes are manually tested by you and the reviewer
• 4. Documentation is written or updated

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