feat: wot core service

[saniddhyaDubey]

Description

Introduces WotService - the core Web of Trust graph logic. Builds a 2-hop trust graph rooted at the relay owner's pubkey by fetching kind-3 follow lists from configured seed relays.
Also patches the wot: config block (#623) with the missing seedRelays field, and updates the settings unit tests accordingly.

Related Issue

Closes (#626).

How Has This Been Tested?

14 new unit tests in test/unit/services/wot-service.spec.ts cover:

• Initial state (not ready, no pubkeys trusted)
• seedPubkey always trusted regardless of follower count
• minimumFollowers threshold : pubkeys above pass, pubkeys below are rejected
• Unknown pubkeys return false
• In-flight build guard — concurrent buildGraph() calls are no-ops
• building flag cleared correctly even when the build throws
• Tag parsing — non-p tags and pubkeys shorter than 64 chars ignored
• reset() clears all state and allows a fresh build

Screenshots (if appropriate):

Passing all unit test mentioned above

Types of changes

• [ X ] New feature (non-breaking change which adds functionality)

Checklist:

• [ X ] My code follows the code style of this project.
• [ X ] I have added tests to cover my code changes.
• [ X ] I added a changeset, or this is docs-only and I added an empty changeset.
• [ X ] All new and existing tests passed.

[changeset-bot]

🦋 Changeset detected

Latest commit: 65977a8

The changes in this PR will be included in the next version bump.

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[coveralls]

coverage: 66.824% (-0.2%) from 66.977% — saniddhyaDubey:feat/wot#2-service into cameri:main