(FEAT)[Refactor Confidence Visualization and Update CSS]: Remove legacy confidence progress HTML function, enhance softmax confidence calculation, and implement theme-aware custom styles for better UI consistency.

(FEAT)[Add Training Types Module]: Introduce core data structures and types for training system, including TrainingConfig and TrainingProgress classes, along with cross-validation strategies and data augmentation functionality.

(FEAT)[Enhanced Results Widget]: Integrate advanced probability breakdown, QC, and provenance export

(CONFIG:Naming)[Enhanced Analysis and Interactive Dashboard]:

(FIX/UX)[Update Image Upload Interface]: Change image display to use container width for better responsiveness + fix jitter bug on Image Analysis page

(FEAT)[Refactor Image Processing Utilities]: Remove unused imports and clean up code structure in image_processing.py

(FEAT)[Add validate_spectrum_modality Utility]:

(REFAC)[Enhance ResultsManager]: Expand ResultsManager for multi-model session tracking and export

(FEAT/REFAC)[Multifile Support Streamlined]: Enhance multifile batch processing for robust spectrum analysis

(CHORE+FIX)[Remove Async]: Remove async inference utilities for polymer classification

(FEAT)[Implement Robust Training Management Backend]: Add training manager, config classes, data augmentation, metrics, and cross-validation utilities

(FEAT)[Model Optimization Suite]: Add Model Optimization Suite for quantization, pruning, and benchmarking

(TASK)[Batch Processing Utilities]: Add module to support batch comparison and processing of spectral files.

(FEAT)[Utilities: Async Inference Engine]: Add asynchronous inference engine for multi-model processing

(MILESTONE)[Feature: Image Processing. ]: Add comprehensive spectral image processing module

(FEAT)[FTIR Processing Enhancements]: Refactor FTIR-specific processing and add atmospheric/water correction methods

(FEAT)[Results Management]: Implement session and persistent results/statistics handling

(FEAT+REFAC)[Data Preprocessing]: Expand preprocessing for multi-modality & file formats

(FEAT)[Performance Analytics]: Implement performance tracking utility and dashboard

(FEAT)[Data Parsing]: Support multi-format spectrum parsing and robust validation

FIX(results_manager): correct dashboard page link case sensitivity in ResultsManager

FEAT(analyzer): Add method to retrieve spectrum data for selected file; enhance visual diagnostics rendering

FIX(dashboard): Correct file path references in dashboard and results manager

FIX(core): Refine results management and UI for dashboard integration

fix(display): Refactor batch results display to improve clarity and metrics presentation

fix(results): Improve formatting and consistency in results management functions

(FEAT): Enhance results management with utility functions for session state initialization and reset

(FEAT): Enhance display of batch results with improved layout and expanded sections for successful results

(FEAT): Add batch processing utilities for multi-file uploads

(FEAT): Add utilities for confidence calculation and visualization

(FEAT): Add utilities for multi-file batch processing and inference

(FEAT) Adds comprehensive 'ResultsManager' class for session-wide results management for multi-file inference.

(FEAT) add centralized error handling utilty for the polymer classification app: utils/error.py

(FEAT) add centralized error handling utilty for the polymer classification app: utils/error.py

(FEAT): implement confidence calculation and visualization utilities

(FIX): correct y array casting in '_ensure_1d_equal' to fix resampled plot

(SYNC): bring parity backend (utils/ scripts/ models/ tests/) from feat/ui-parity-rebuild; no UI changes

(DEPLOY): move HF Space app to repo root for build