fix(adapters): use bool data_type for MegaSquirt MIL channel

[SomethingNew71]

Problem

GET /api/adapters logged a Zod validation error on every request and silently omitted the MegaSquirt adapter from the response:

Invalid adapter YAML megasquirt/megasquirt-tunerstudio: ... channels[19].data_type

Cause

specs/adapters/megasquirt/megasquirt-tunerstudio.adapter.yaml declared data_type: boolean on the mil channel (index 19). AdapterChannelSchema in server/schemas/adapter.ts accepts float | int | bool | string | enum — boolean is not a member.

Because safeParse fails the whole document, server/api/adapters.get.ts:46 logged the error and returned null for that adapter, so MegaSquirt never reached the listing or the marketplace UI.

Fix

One line: boolean → bool. This was the only boolean in specs/; the two other bool-typed channels in the repo already used bool.

Verification

1. Live GET /api/adapters on this PR's Vercel preview deployment — HTTP 200, 9 adapters, MegaSquirt present:

{
  "id": "megasquirt-tunerstudio",
  "name": "MegaSquirt TunerStudio Datalog",
  "version": "1.0.0",
  "vendor": "megasquirt",
  "channelCount": 21,
  "categories": ["engine","electrical","pressure","fuel","ignition","temperature","speed","drivetrain","diagnostics"],
  "fileFormat": "csv",
  "extensions": [".csv"]
}

Vendors returned: aim, ecumaster, emerald, haltech, link, megasquirt, romraider, rusefi, speeduino — all 9, none dropped.

2. All nine adapter YAMLs parsed against the project's own AdapterYamlSchema:

  OK   speeduino/speeduino-mlg  (22 channels)
  OK   ecumaster/ecumaster-emu-csv  (33 channels)
  OK   haltech/haltech-nsp  (37 channels)
  OK   romraider/romraider-csv  (27 channels)
  OK   link/link-llg  (57 channels)
  OK   megasquirt/megasquirt-tunerstudio  (21 channels)
  OK   rusefi/rusefi-mlg  (46 channels)
  OK   emerald/emerald-lg  (32 channels)
  OK   aim/aim-xrk  (47 channels)

valid=9 invalid=0

Channel 19 now parses as {"id":"mil", ..., "data_type":"bool", ...}.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
open-ecu-alliance	Ready	Preview	Aug 24, 2026 12:25am

[Copilot]

Pull request overview

This PR fixes a Zod validation failure that caused the MegaSquirt adapter YAML to be rejected and omitted from GET /api/adapters, by aligning the adapter channel data_type value with the server’s AdapterChannelSchema.

Changes:

• Update MegaSquirt mil channel data_type from boolean to bool to match z.enum(['float','int','bool','string','enum']).
• Ensure the MegaSquirt adapter YAML can pass schema validation and be included in the adapters listing.

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