Wire the ecosystem-alias overlay module and settings [OPL-4463]

[rohenaz]

Wire NewLookupService(topicStorage), module routes, capabilities, and runtime settings using the shared ModuleDeps, including Broadcaster and P2PBus. Keep the module disabled by default. Incorporates the event-based lookup, numeric output ordering, and bounded skip/limit fixes.

Validation on the updated wiring: ecosystemalias, overlay/storage, config, cmd/server, admin, and docs/architecture tests pass; server build passes. The event-score regression also ran against real PostgreSQL and SQLite.

[linear]

OPL-4463

[shruggr]

Rebased onto #27 and pushed wiring that constructs NewLookupService(topicStorage) only. No ClaimStore. Engine still gets the shared ModuleDeps including Broadcaster and P2PBus.

Docs no longer mention ecosystem_alias_claims or ea1. cursors. Lookup is events + skip/limit.

#33 should not nil Broadcaster/P2PBus. Overlay Submit should broadcast like the other modules.

[rohenaz]

Merged the fixes from #23/#27 into your wiring, preserving the rewritten README and shared Broadcaster/P2PBus. Resolved only the documentation conflict; no broadcaster disabling or claims table was restored.

Validation on the updated wiring: ecosystemalias, overlay/storage, config, cmd/server, admin, and docs/architecture tests pass; server build passes. The event-score regression also ran against real PostgreSQL and SQLite.

SDK #41 now uses skip/limit. Sigma follow-up https://github.com/b-open-io/sigma-auth/pull/354 corrects the wallet noSend/overlay-broadcast guarantees.

[rohenaz]

The new real HTTP lifecycle gate found two integration blockers that the earlier provider tests did not cover:

1. { "service": "ls_ecosystemalias", "query": {} } returns HTTP 400 before dispatch because go-overlay-services rejects every zero-length map. Upstream fix: fix(server): allow explicit empty lookup query objects bsv-blockchain/go-overlay-services#365 (explicit empty objects accepted; missing/null still rejected).
2. A populated lookup returns HTTP 500 (FindOutput: topic is required) because engine formula hydration omits the topic. Draft stack Gate alias HTTP lifecycle and fix topic-scoped BEEF hydration [OPL-4473] #34 binds hydration to a single-topic engine's own store and includes a cross-topic regression.

With the pinned dependency plus #365's isolated patch, the full Go suite and server build pass. The new gate exercises real Fiber routes, engine, SQLite, disk BEEF, historical/current modes, conflicts, paging, spend eviction, and restart persistence with synthetic chain dependencies. #34 intentionally remains draft until #365 is included in the dependency pin. My earlier no-new-blockers assessment was limited to the package tests; these are additional public-path blockers.