feat: recognise the OpenFeature web provider, and keep telemetry SDK types valid

[basb7]

What does this change?

@flagward/openfeature-web (basb7/flagward-sdk-js#13) registers as OPENFEATURE_WEB. The endpoint already accepts it, since sdk_register never validates sdk_type; this makes the product recognise it, so the dashboard and telemetry can count it instead of folding it into other.

A bug this avoids on the way

The telemetry allowlist is built from SDKType, and sdk_type_name reported a known type lowercased: openfeature_web. The collector (flagward-telemetry, lib/schema/v1.ts) accepts sdks[].type only as ^[a-z0-9-]{1,32}$, and its schema is strict. One underscored value rejects the whole heartbeat, so every installation with the provider connected would have stopped reporting entirely, with no error anywhere.

Nothing in production hits it today: v0.7.0 does not know the type and sends other. It would have started with this enum change.

• sdk_type_name now reports underscores as hyphens → openfeature-web.
• A contract test runs every SDKType value through sdk_type_name against the collector's pattern, so the next underscored type (a future OPENFEATURE_NODE) fails here, not in the field. Verified it fails with the enum added and the fix removed.

Changes

File	Change
telemetry/anonymize.py	underscores → hyphens in the reported SDK type
sdk_api/models.py + migration 0006	OPENFEATURE_WEB = "OpenFeature (web)" (choices only, no schema change)
frontend/src/lib/api.ts	SDKType union learns 'OPENFEATURE_WEB'
tests/unit/test_telemetry_anonymize.py	collector-pattern contract test + the new mapping
tests/unit/test_sdk_registration.py	OPENFEATURE_WEB among the values published packages send
frontend/public/logo-mark.svg	a monochrome, single-path SVG of the mark, vectorised from logo.png (silhouette matches at IoU 0.971). Needed for the openfeature.dev provider listing, whose logos are fill-less

Three commits: the telemetry fix first (it stands on its own and passes alone), then the type, then the logo.

Checks

• pytest: 814 passed · ruff check .: clean · makemigrations --check: no changes pending
• frontend: biome check, tsc --noEmit clean · npm test: 188 passed