Big refactor of mining pool support, optimization of existing icons

src/lib/mining_pool/noderunners/noderunners_pool.cpp

@@ -0,0 +1,39 @@
+// src/noderunners/noderunners_pool.cpp
+#include "noderunners_pool.hpp"
+
+void NodeRunnersPool::prepareRequest(HTTPClient& http) const {
+    // Empty as NodeRunners doesn't need special headers
+}
+
+std::string NodeRunnersPool::getApiUrl() const {
+    return "https://pool.noderunners.network/api/v1/users/" + poolUser;
+}
+
+PoolStats NodeRunnersPool::parseResponse(const JsonDocument& doc) const {
+    std::string hashrateStr = doc["hashrate1m"].as<std::string>();
+    char unit = hashrateStr.back();
+    std::string value = hashrateStr.substr(0, hashrateStr.size() - 1);
+    
+    int multiplier = getHashrateMultiplier(unit);
+    
+    return PoolStats{
+        .hashrate = value + std::string(multiplier, '0'),
+        .dailyEarnings = std::nullopt
+    };
+}
+
+LogoData NodeRunnersPool::getLogo() const {
+    return LogoData {
+        .data = epd_icons_allArray[6],
+        .width = 122,
+        .height = 122
+    };
+}
+
+int NodeRunnersPool::getHashrateMultiplier(char unit) {
+    static const std::unordered_map<char, int> multipliers = {
+        {'Z', 21}, {'E', 18}, {'P', 15}, {'T', 12},
+        {'G', 9},  {'M', 6},  {'K', 3}
+    };
+    return multipliers.at(unit);
+}

src/lib/mining_pool/noderunners/noderunners_pool.hpp

@@ -0,0 +1,20 @@
+
+#pragma once
+
+#include "lib/mining_pool/mining_pool_interface.hpp"
+#include <icons/icons.h>
+
+class NodeRunnersPool : 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 false; }
+    std::string getDailyEarningsLabel() const override { return ""; }
+
+private:
+    static int getHashrateMultiplier(char unit);
+};