AS-3125 Map current set of Tesla fields

[elffjs]

Introduce raw Tesla payload translation. We assume that we are given a CloudEvent

{
  "subject": "did:nft:137:0xbA5738a18d83D41847dfFbDC6101d37C69c9B0cF_37", // DID for vehicle NFT.
  "source": "0x983110309620D911731Ac0932219af06091b6744", // Tesla connection address.
  "data": { // Untouched "response" field from Tesla's /vehicle_data endpoint
            // https://developer.tesla.com/docs/fleet-api/endpoints/vehicle-endpoints#vehicle-data
    "charge_state": {
      "battery_level": 23,
      "timestamp": 1730728800, // Row timestamps come from the section timestamps like this one.
      …

Here we only add the signals that we presently parse out from Tesla, along with one more: the amount of energy added to the battery during an active charging session.

Following Ruptela, there's a new pkg/tesla/schema/tesla-definitions.yaml and a new make target generate-tesla.

Conversion oddities:

• Tesla pressure measurements are in bars
• Distances and speeds are always in miles and miles per hour

[linear]

AS-3125 First set of Tesla mappings

[KevinJoiner]

Suggested change

	var ce cloudevent.CloudEvent[struct{}]
	var ce cloudevent.CloudEventHeader

[elffjs]

Interesting. Let's do that.