feat(embeddings): expand input token from 145-D to 151-D with physical-functional payload

feat(train,heads,loss): DeepSeekLossBalancer + continuous cosine alignment

feat(structure,thermo): 3D shape + natural oil reconstruction, 145-D input

fix(training): update hf_train_job to run from cloned repo, add text conditioning, fix dataset viewer

feat(pino): publication-grade training telemetry and fused multi-task labels

chore(pino): add run_training entry point for Space compatibility

feat(pino): literature seed integration, stratified dataset split, registry enrichment, and Space sync

feat: Milestone 4 clean code snapshot