phase-9: domain-driven architecture complete

- Restructured server layer with 5 domains: shared, screener, portfolio, calls, finance
- Migrated 58 TypeScript files to domain-driven structure
- Updated CLAUDE.md with new architecture documentation
- Added .gitignore rules for .md files (except CLAUDE.md)
- Removed unused CatalystAnalyst import from app.ts
- Fixed lint errors: removed unused imports, fixed regex escape, added console suppressions
- Verified no sensitive data in git history
- Server code compiles cleanly with TypeScript strict mode

server/domains/screener/transform/RuleMerger.ts

@@ -0,0 +1,43 @@
+import { ScoringRules } from '../../../domains/shared/scoring/ScoringConfig';
+import { MarketRegime } from '../../../domains/shared/scoring/MarketRegime';
+import { SCORE_MODE } from '../../../domains/shared';
+import type { AssetType, MarketContext, RuleSet } from '../../../domains/shared';
+
+export class RuleMerger {
+  static getRulesForAsset(
+    type: AssetType,
+    metrics: { sector?: string },
+    marketContext: Partial<MarketContext> = {},
+    mode: string = SCORE_MODE.FUNDAMENTAL,
+  ): RuleSet {
+    const base = ScoringRules[type as keyof typeof ScoringRules];
+    if (!base) throw new Error(`No rules configured for asset type: ${type}`);
+
+    // Deep clone to avoid mutating the source config
+    const rules: RuleSet & { SECTOR_OVERRIDE?: unknown } = JSON.parse(JSON.stringify(base));
+
+    if (type === 'STOCK' && metrics.sector) {
+      const stockBase = ScoringRules.STOCK;
+      const override =
+        stockBase.SECTOR_OVERRIDE?.[
+          metrics.sector.toUpperCase() as keyof typeof stockBase.SECTOR_OVERRIDE
+        ];
+      if (override) {
+        rules.gates = { ...rules.gates, ...override.gates };
+        rules.weights = { ...rules.weights, ...override.weights };
+        rules.thresholds = { ...rules.thresholds, ...override.thresholds };
+      }
+    }
+    delete rules.SECTOR_OVERRIDE;
+
+    if (mode === SCORE_MODE.INFLATED) {
+      const { gates, thresholds } = new MarketRegime(
+        marketContext as MarketContext,
+      ).getInflatedOverrides(type, metrics.sector);
+      rules.gates = { ...rules.gates, ...gates };
+      rules.thresholds = { ...rules.thresholds, ...thresholds };
+    }
+
+    return rules;
+  }
+}