Convert all variables to camelCase naming convention

[Copilot]

This PR converts all variable names throughout the codebase from snake_case to camelCase to establish a consistent naming convention across the project.

Changes Made

Global Variables (globals.py)

• data_period → dataPeriod
• trig_window → trigWindow
• min_trigger_hits → minTriggerHits
• scint_area → scintArea
• num_scint → numScint
• min_hits → minHits
• muon_rate → muonRate
• p_nohit_bg → pNohitBg

Physics Module (physics.py)

• Function parameters: phone_x/phone_y → phoneX/phoneY, s_theta/s_phi → sTheta/sPhi, det_phi → detPhi
• Energy variables: E_eV → eEv, E_GeV → eGev, log10_E → log10E
• Internal variables: r_M → rM, upper_energy → upperEnergy

Main Module (main.py)

• Array parameters: sizeOfArray → arraySize (improved naming)
• Simulation variables: min_E → minE, eas_rate → easRate, n_eas_showers → nEasShowers
• Histogram objects: es_shower_h → esShowerH, nllr_shower_h → nllrShowerH
• Background variables: bg_scale → bgScale, n_bg_events → nBgEvents
• Analysis results: signal_llr_values → signalLlrValues, noise_llr_values → noiseLlrValues
• File operations: output_dir → outputDir, csv_file → csvFile, write_header → writeHeader
• Timing/memory: start_time → startTime, total_mem_used → totalMemUsed

Statistical Analysis (likelihood.py)

• Function parameters updated to use camelCase consistently
• Statistical variables: mean_signal → meanSignal, std_noise → stdNoise, combined_std → combinedStd
• Result variables: max_s_over_sqrt_b → maxSOverSqrtB, best_threshold → bestThreshold

Data Processing (plot_metric_results.py)

• File processing: csv_files → csvFiles, all_dfs → allDfs, combined_df → combinedDf
• Column validation: required_columns → requiredColumns, missing_columns → missingColumns
• Data structures: metric_data → metricData, last_entries → lastEntries

Visualization (testing.py)

• Grid variables: x_grid → xGrid, y_grid → yGrid
• Plot data: metric_values → metricValues, X_flat → xFlat, valid_indices → validIndices

Preserved Naming

• Function names: Kept as snake_case following Python conventions (calculate_snr, p_nohit, etc.)
• CSV column names: Preserved for data compatibility (snr_no_sd, p_value, etc.)
• Module imports: No changes to maintain compatibility

Testing

• All Python files compile successfully
• Module imports work correctly
• Core functionality verified with new variable names
• Physics calculations and array operations tested

This refactoring improves code consistency while maintaining all existing functionality and preserving external data format compatibility.

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