fix: wildcard server sends interactions to all clients

[dogancanbakir]

Summary

• In wildcard mode (-wc), GetInteractionsWithId clears data on the first client's poll, starving all other clients
• Add per-consumer read offsets (GetInteractionsWithIdForConsumer) so each client independently tracks its position in the shared data buffer
• Clean up consumer offsets on deregister, evict stale consumers lazily, enforce configurable max buffer cap (INTERACTSH_MAX_SHARED_INTERACTIONS, default 10000)

Fixes #1296

[neo-by-projectdiscovery-dev]

Neo - PR Security Review

No security issues found

Highlights

• Implements per-consumer read offsets for wildcard mode to fix multi-client polling starvation
• Adds buffer cap enforcement (INTERACTSH_MAX_SHARED_INTERACTIONS, default 10000) to prevent unbounded memory growth
• Includes consumer cleanup on deregister and stale consumer eviction based on EvictionTTL

Hardening Notes

• Consider adding rate limiting on the /poll endpoint to prevent abuse from authenticated clients making excessive polling requests
• Add logging/metrics for buffer cap enforcement events in enforceMaxBuffer (storagedb.go:367) to monitor when the limit is reached and data is being trimmed
• Consider adding a configurable maximum number of concurrent consumers per wildcard ID to prevent resource exhaustion from a single attacker registering many clients

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