refactor: migrate src/scoring to domain/services/scoring

Complete Clean Architecture migration of scoring module:
- Move src/scoring to src/domain/services/scoring
- Update all import paths from crate::scoring to crate::domain::services::scoring
- Migrate corresponding tests to tests/unit/domain/services/scoring
- No implementation changes, pure refactoring
- All 589 tests passing

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: unhappychoice

src/domain/models/storage/session.rs

@@ -98,7 +98,7 @@ pub struct SaveStageParams<'a> {
     pub repository_id: Option<i64>,
     pub stage_index: usize,
     pub stage_name: &'a str,
-    pub stage_result: &'a crate::scoring::StageResult,
+    pub stage_result: &'a crate::domain::services::scoring::StageResult,
     pub keystrokes: usize,
     pub challenge: Option<&'a crate::domain::models::Challenge>,
 }

src/domain/repositories/session_repository.rs

@@ -4,7 +4,7 @@ use crate::infrastructure::storage::{
 };
 use crate::domain::models::storage::{SaveStageParams, SessionResultData, SessionStageResult, StoredRepository, StoredSession};
 use crate::domain::models::{Challenge, GitRepository, SessionResult};
-use crate::scoring::{StageResult, StageTracker};
+use crate::domain::services::scoring::{StageResult, StageTracker};
 use crate::{error::GitTypeError, Result};
 use std::sync::{Arc, Mutex};
 
@@ -86,7 +86,7 @@ impl SessionRepository {
             .iter()
             .enumerate()
             .map(|(index, (name, tracker))| {
-                let stage_result = crate::scoring::StageCalculator::calculate(tracker);
+                let stage_result = crate::domain::services::scoring::StageCalculator::calculate(tracker);
                 let keystrokes = tracker.get_data().keystrokes.len();
                 let challenge = challenges.get(index).cloned();
                 Ok((name.clone(), stage_result, keystrokes, challenge))

src/domain/services/mod.rs

@@ -1,3 +1,4 @@
 pub mod extractor;
 pub mod history;
+pub mod scoring;
 pub mod theme_manager;

src/scoring/calculator/mod.rs …omain/services/scoring/calculator/mod.rssrc/scoring/calculator/mod.rs renamed to src/domain/services/scoring/calculator/mod.rs src/scoring/calculator/mod.rs renamed to src/domain/services/scoring/calculator/mod.rs

@@ -1,5 +1,5 @@
 use crate::domain::models::SessionResult;
-use crate::scoring::tracker::SessionTracker;
+use crate::domain::services::scoring::tracker::SessionTracker;
 use std::time::Duration;
 
 /// Session level result calculation
@@ -66,7 +66,7 @@ impl SessionCalculator {
                 / valid_keystrokes as f64)
                 * 100.0;
 
-            crate::scoring::ScoreCalculator::calculate_score_from_metrics(
+            crate::domain::services::scoring::ScoreCalculator::calculate_score_from_metrics(
                 cpm,
                 accuracy,
                 valid_mistakes,

src/scoring/calculator/realtime.rs …/services/scoring/calculator/realtime.rssrc/scoring/calculator/realtime.rs renamed to src/domain/services/scoring/calculator/realtime.rs src/scoring/calculator/realtime.rs renamed to src/domain/services/scoring/calculator/realtime.rs

@@ -1,5 +1,5 @@
 use crate::domain::models::{Rank, StageResult};
-use crate::scoring::tracker::StageTracker;
+use crate::domain::services::scoring::tracker::StageTracker;
 
 /// Stage level result calculation
 pub struct StageCalculator;
@@ -38,7 +38,7 @@ impl StageCalculator {
             all_streaks.push(data.current_streak);
         }
 
-        let challenge_score = crate::scoring::ScoreCalculator::calculate_score_from_metrics(
+        let challenge_score = crate::domain::services::scoring::ScoreCalculator::calculate_score_from_metrics(
             cpm,
             accuracy,
             mistakes,
@@ -47,7 +47,7 @@ impl StageCalculator {
         );
         let rank_name = Rank::for_score(challenge_score).name().to_string();
         let (tier_name, tier_position, tier_total, overall_position, overall_total) =
-            crate::scoring::RankCalculator::calculate_tier_info(challenge_score);
+            crate::domain::services::scoring::RankCalculator::calculate_tier_info(challenge_score);
 
         StageResult {
             cpm,

src/scoring/calculator/session.rs …n/services/scoring/calculator/session.rssrc/scoring/calculator/session.rs renamed to src/domain/services/scoring/calculator/session.rs src/scoring/calculator/session.rs renamed to src/domain/services/scoring/calculator/session.rs

@@ -1,5 +1,5 @@
 use crate::domain::models::TotalResult;
-use crate::scoring::tracker::TotalTracker;
+use crate::domain::services::scoring::tracker::TotalTracker;
 use std::time::{Duration, Instant};
 
 /// Total level result calculation