feat(efp): read-only EFP stats on address profiles

[Quantumlyy]

Summary

Adds a read-only Ethereum Follow Protocol integration so address profiles and supporter lists can show public follow graph data from the EFP API. No on-chain follow actions in this PR — just stats, mutual followers, and a way to spot supporters you already follow on EFP.

Gated behind a new enableEfp network flag (same idea as enableEns: off on local testnet, on everywhere else we ship ENS).

Changes

• $lib/utils/efp — thin client for api.ethfollow.xyz (stats, commonFollowers, followerState, plus batched getSupportersYouFollow).
• $lib/stores/efp — cached lookups with in-flight dedupe; hydrateStats so SSR data from the profile load does not get re-fetched on the client.
• EfpStats — follower/following counts (link out to efp.app) and optional “Followers you know” pile.
• Address profile ([accountId]/+page) — SSR stats in +page.server.ts; client fetch for common followers when viewing someone else while connected.
• identity-card — stats on the address card via the store (client fetch).
• supporters.section — “Show supporters you follow” on address profiles; tags matching supporters with a Following label.
• createAsyncRequestGuard — drops stale common-follower responses when navigating between profiles quickly.
• Tests — unit coverage for the API client, store, EfpStats, supporter address extraction, and the request guard.

Not in scope: wiring EFP into identity-badge (too noisy there), or any write/follow UI.

Test plan

• On mainnet (or any network with enableEfp: true), open an address profile with real EFP activity — follower/following counts show and link to efp.app.
• Same profile, wallet connected as a different address — “Followers you know” appears when the API returns mutuals.
• Navigate between two profiles quickly — common followers do not flash data from the previous profile.
• Address profile supporters section — “Show supporters you follow” loads and tags rows; toggle off clears tags.
• Identity card for an address (e.g. somewhere that renders identity-card with an address) shows stats after load.
• Local testnet (dev:docker, chain 31337) — no EFP UI, no requests to the EFP API.
• npm run test:unit — EFP-related tests pass.
• npx lint-staged --concurrent false and npm run check clean on touched files.

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds EthFollow (EFP) integration to surface follower/following stats and “common followers” in the app UI, with supporting API client, store, and tests.

Changes:

• Fetch EFP stats server-side for profile pages and hydrate client store.
• Add EFP UI components (stats + common followers) to profile/identity/supporters views.
• Introduce EFP API utilities + store + async request guard, with unit tests.

Reviewed changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/routes/(pages)/app/(app)/[accountId]/+page.svelte	Hydrates/reads EFP stats and looks up common followers for the viewed profile.
src/routes/(pages)/app/(app)/[accountId]/+page.server.ts	Loads EFP stats during SSR when enabled.
src/lib/utils/efp/index.ts	Adds EFP API client helpers (stats, common followers, follower state).
src/lib/stores/efp/efp.store.ts	Adds client-side store + caching for EFP stats/common followers.
src/lib/components/efp-stats/efp-stats.svelte	Adds reusable EFP stats/common-followers UI.
src/lib/components/supporters-section/supporters.section.svelte	Adds “supporters you follow” highlight using EFP followerState.
src/lib/stores/wallet/network.ts	Adds enableEfp feature flag to network config.
*.unit.test.ts	Adds unit tests for EFP utilities/store/component + async guard.

Comments suppressed due to low confidence (1)

src/routes/(pages)/app/(app)/[accountId]/+page.server.ts:1

• await getVotingRounds(...) inside Promise.all([...]) defeats parallelism by awaiting that promise before Promise.all starts. Remove the inner await so all requests are started concurrently.

import { DRIP_LISTS_SECTION_DRIP_LIST_FRAGMENT } from '$lib/components/your-drip-lists-section/your-drip-lists-section.svelte';

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