feat: Compliance Maximizer — Regulatory Optimization Engine

Neues Modul das den regulatorischen Spielraum fuer KI-Use-Cases
deterministisch berechnet und optimale Konfigurationen vorschlaegt.

Kernfeatures:
- 13-Dimensionen Constraint-Space (DSGVO + AI Act)
- 3-Zonen-Analyse: Verboten / Eingeschraenkt / Erlaubt
- Deterministische Optimizer-Engine (kein LLM im Kern)
- 28 Constraint-Regeln aus DSGVO, AI Act, EDPB Guidelines
- 28 Tests (Golden Suite + Meta-Tests)
- REST API: /sdk/v1/maximizer/* (9 Endpoints)
- Frontend: 3-Zonen-Visualisierung, Dimension-Form, Score-Gauges

[migration-approved]

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ai-compliance-sdk/internal/maximizer/constraint_loader.go

@@ -0,0 +1,52 @@
+package maximizer
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+)
+
+const defaultConstraintFile = "policies/maximizer_constraints_v1.json"
+
+// LoadConstraintRules reads a constraint ruleset from a JSON file.
+func LoadConstraintRules(path string) (*ConstraintRuleSet, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("read constraint file %s: %w", path, err)
+	}
+	var rs ConstraintRuleSet
+	if err := json.Unmarshal(data, &rs); err != nil {
+		return nil, fmt.Errorf("parse constraint file %s: %w", path, err)
+	}
+	if rs.Version == "" {
+		return nil, fmt.Errorf("constraint file %s: missing version", path)
+	}
+	return &rs, nil
+}
+
+// LoadConstraintRulesFromDefault loads from the default policy file
+// relative to the project root.
+func LoadConstraintRulesFromDefault() (*ConstraintRuleSet, error) {
+	root := findProjectRoot()
+	path := filepath.Join(root, defaultConstraintFile)
+	return LoadConstraintRules(path)
+}
+
+// findProjectRoot walks up from the current source file to find the
+// ai-compliance-sdk root (contains go.mod or policies/).
+func findProjectRoot() string {
+	_, filename, _, ok := runtime.Caller(0)
+	if !ok {
+		return "."
+	}
+	dir := filepath.Dir(filename)
+	for i := 0; i < 10; i++ {
+		if _, err := os.Stat(filepath.Join(dir, "policies")); err == nil {
+			return dir
+		}
+		dir = filepath.Dir(dir)
+	}
+	return "."
+}