[Copilot]

The ranking module lacked documentation explaining its purpose, scoring algorithm, and API usage, making it difficult for users to understand how to configure and use the ranking system.

Changes

• Module-level documentation: Explains the scoring algorithm (score = section_weight + semantic_boost - noise_penalty), provides usage examples with both default and custom configuration, and clarifies the relationship between RankingConfig and RankingEngine

• RankingConfig documentation: Documents the purpose of each field (section_weights, tag_boosts, noise_penalty_multiplier) with expected value ranges (typically 0-200) and their influence on scoring behavior

• RankingEngine documentation: Documents the engine's scoring workflow, debug mode behavior (controls whether per-component scoring details are populated), and all public methods including parameter semantics and mutability

Example Usage

use stringy::classification::{RankingEngine, RankingConfig};

// Customize scoring behavior
let mut config = RankingConfig::default();
config.noise_penalty_multiplier = 150; // Increase noise penalties
let engine = RankingEngine::with_config(config, true); // Enable debug mode

// Score and rank strings
engine.calculate_score(&mut found_string, Some(&section_info));
engine.rank_strings(&mut strings); // Sorted by score descending

The documentation now explains that when debug_mode is enabled, calculate_score populates section_weight, semantic_boost, and noise_penalty fields on each FoundString for transparency. When disabled, only the aggregate score is computed.

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