Add __init__.py for new modules + training package init

Add upgraded SFT training script with SciRIFF data + proper QLoRA config

Add SciRIFF training data integration script (72x more data for training)

Add Epistemic Velocity tracking + Confidence Decomposition Display (Layer 5 upgrades)

Add Low Confidence Quarantine (system learns to say 'I don't know') + SciBERT-NLI contradiction pre-filter

Add Epistemic Trigger Words validator (deterministic code-based epistemic classification alongside AI)

Add SciFact benchmark evaluation script (Layer 6: measures extraction quality against ground truth)

Add SPECTER2 embedding-based deduplication (replaces Jaccard word overlap)

Add phd_research_os_v2/layer7/obsidian.py

Add phd_research_os_v2/layer6/evaluator.py

Add phd_research_os_v2/layer3/canonicalizer.py

v2.0: phd_research_os_v2/layer5/scorer.py

v2.0: phd_research_os_v2/layer5/__init__.py

v2.0: phd_research_os_v2/layer4/graph.py

v2.0: phd_research_os_v2/layer4/__init__.py

v2.0: phd_research_os_v2/layer2/extractor.py

v2.0: phd_research_os_v2/layer2/__init__.py

v2.0: phd_research_os_v2/layer0/parser.py

v2.0: phd_research_os_v2/layer0/__init__.py

v2.0: phd_research_os_v2/core/database.py

v2.0: phd_research_os_v2/core/__init__.py

v2.0: phd_research_os_v2/app.py

v2.0: phd_research_os_v2/__main__.py

v2.0: phd_research_os_v2/__init__.py