CompatScope

Major Changes

• Improved diagnostic tracking by separating STATIC, RUNTIME, and PERFORMANCE diagnostics.
• Added proper runtime observation tracking so that a diagnostic disappearing from a limited log window is no longer automatically considered resolved.
• Added runtime states such as NEWLY OBSERVED, STILL OBSERVED, NO LONGER OBSERVED, AGED OUT, and UNVERIFIED MISSING.
• Added runtime observation-window tracking with timestamps, event counts, configured limits, and truncation reasons.
• Merged and chronologically sorted latest.log and debug.log events before applying runtime event limits.
• Improved crash-report handling so missing crash reports are treated conservatively rather than automatically marked as resolved.
• Added persistent diagnostic history with occurrence timestamps and runtime-window information.
• Improved performance diagnostic tracking and added support for performance state transitions, preventing transitions such as tick_tail → tick_spike from appearing as unrelated removed/added diagnostics.
• Improved Version Impact so it compares against the immediately previous completed Scan, while the persistent baseline remains available for cumulative Changes.
• Added semantic snapshot fingerprints and compact diagnostic indexes to reduce unnecessary parsing, rebuilding, and file rewriting.
• Improved runtime diagnostic matching to avoid incorrectly combining unrelated exceptions.
• Added migration support for older diagnostic history formats while preserving conservative behavior when historical runtime-window information is unavailable.
• Added normalization of NeoForge and Fabric timestamps and support for firstSeen / lastSeen diagnostic timestamps.
• Added affectedTargetsSampled and affectedTargetsReturned to make bounded diagnostic samples explicit.
• Improved Investigation Groups and added structured Investigation Action Plans with: First check → Evidence → Affected object → Context → Verification.
• Investigation evidence now includes concrete evidence codes, descriptions, and bounded evidence objects.
• HTML reports now display all Investigation Groups instead of truncating them.
• Added detection of slow datapack loading as a dedicated performance degradation diagnostic instead of treating it as a generic error.
• Improved performance/degradation classification so timing-based warnings are not incorrectly classified as exceptions or failures.
• Improved Scan timing reporting by separating full wall-clock duration from nested scanner/analyzer/fingerprint timings.
• Added detailed top-level, nested, measured, and coordination timing information.
• Optimized duplicate-material analysis, runtime mod-id inference, semantic comparison, and Version Tracking.
• Prevented unnecessary rewriting of unchanged snapshots and diagnostic files.
• Improved the Changes UI, HTML reports, and /compatscope version-impact so they consistently use the same diagnostic and transition semantics.
• Preserved backward compatibility for legacy diagnostic fields and older history formats while introducing the new tracking model.
• Improved baseline handling so the first Scan preserves its current runtime observation window and can correctly distinguish missing diagnostics from diagnostics that simply aged out of the available log window.
• and other adds/fixes