feat(v5.7.4): Semantic Closure Gate, Delete unused files, PDF Fixes

hotfix: Spec v5.7 Live QA Fixes (Auto-commit, terminology, and intent reset guardrails)

V5.7.2: Final Demo Polish - Unified Product State (active_products) & Intent Hardening Guardrails

V5.7.1: Unified Product State Authority - Fixed post-pricing amnesia & enabled multi-product support

Spec v5.3: Operation Beit Yitzhak Hardening (Domain Gate, Visual Trust, Semantic Aging)

Upgrade: Planner v4.2 (Smart Gateway) & Integrity Layer v1.0 Integration

Hotfix: Remove incompatible additionalProperties from responseSchema

feat: Phase 4 Conversational Compiler - Multi-Entity Parsing & Deterministic Normalization

Phase 2 Sprint 2.3

Phase 2 Sprint 2.1: Budget Kill Switch (.0), Direct GCP Storage Protocol, and 10MB Image Gatekeeper

Hardening 1.3.1: Global Cart Margin Analyzer + Full Stress Test Suite Passing (4/4)

Finalizing Margin Warnings and Classifier refinements for Sanity checks

Phase 1.3 Final Hardening - Transparency & Business Truth

feat: Event-Based Upselling engine + updated product catalog from by-print.co.il

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