feat(mcp): add --http flag to serve the package over HTTP

[mattrossman]

Adds an --http flag to the existing bin so you can test the package over HTTP without running platform locally, with similar inputs as the hosted endpoint.

Opening as a draft mostly as a smaller reference point next to #401.

To run preview:

npx https://pkg.pr.new/@supabase/mcp-server-supabase@402 --http

Client config:

{
  "mcpServers": {
    "supabase-local": {
      "type": "http",
      "url": "http://localhost:3100/mcp?project_ref=<ref>",
      "headers": { "Authorization": "Bearer <pat>" }
    }
  }
}

Closes AI-1166

[coveralls]

Coverage Report for CI Build 33669374170

Coverage decreased (-1.3%) to 95.294%

Details

• Coverage decreased (-1.3%) from the base build.
• Patch coverage: 48 uncovered changes across 1 file (10 of 58 lines covered, 17.24%).
• No coverage regressions found.

Uncovered Changes

File	Changed	Covered	%
packages/mcp-server-supabase/src/transports/http.ts	58	10	17.24%

Coverage Regressions

No coverage regressions found.

---

Coverage Stats

Relevant Lines:	3144
Covered Lines:	3011
Line Coverage:	95.77%
Relevant Branches:	405
Covered Branches:	371
Branch Coverage:	91.6%
Branches in Coverage %:	Yes
Coverage Strength:	49.61 hits per line

---

💛 - Coveralls

[pkg-pr-new]

Open in StackBlitz

pnpm add https://pkg.pr.new/@supabase/mcp-server-postgrest@b023bda

pnpm add https://pkg.pr.new/@supabase/mcp-server-supabase@b023bda

pnpm add https://pkg.pr.new/@supabase/mcp-utils@b023bda

commit: b023bda

[mattrossman]

Closing in favor of #401