Big refactor of mining pool support, optimization of existing icons

src/lib/mining_pool/ocean/ocean_pool.cpp

@@ -0,0 +1,26 @@
+#include "ocean_pool.hpp"
+
+void OceanPool::prepareRequest(HTTPClient& http) const {
+    // Empty as Ocean doesn't need special headers
+}
+
+std::string OceanPool::getApiUrl() const {
+    return "https://api.ocean.xyz/v1/statsnap/" + poolUser;
+}
+
+PoolStats OceanPool::parseResponse(const JsonDocument& doc) const {
+    return PoolStats{
+        .hashrate = doc["result"]["hashrate_300s"].as<std::string>(),
+        .dailyEarnings = static_cast<int64_t>(
+            doc["result"]["estimated_earn_next_block"].as<float>() * 100000000
+        )
+    };
+}
+
+LogoData OceanPool::getLogo() const {
+    return LogoData{
+        .data = epd_icons_allArray[4],
+        .width = 122,
+        .height = 122
+    };
+}

src/lib/mining_pool/ocean/ocean_pool.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "lib/mining_pool/mining_pool_interface.hpp"
+#include <icons/icons.h>
+
+class OceanPool : public MiningPoolInterface {
+public:
+    void setPoolUser(const std::string& user) override { poolUser = user; }
+    void prepareRequest(HTTPClient& http) const override;
+    std::string getApiUrl() const override;
+    PoolStats parseResponse(const JsonDocument& doc) const override;
+    LogoData getLogo() const override;
+    bool supportsDailyEarnings() const override { return true; }
+    std::string getDailyEarningsLabel() const override { return "sats/block"; }
+};