Fix 5 test architecture issues from code review

Add DLAB register handling, functional coverage covergroups, SVA assertions

Fix disable fork bug, RAL type mismatch, driver serial injection, interrupt timeout, error seq get_response, RAL seq library removal, hw_rst timeout guard

Fix 12 test-layer issues from code review

Phase 4 comprehensive audit: fix 29 bugs across 7 templates

Fix string->sformatf, if-fatal assertions, RO addr filtering, unique obj names, cfg DB guard, configurable timeout

Fix register address mapping + read-only guards + uart_random_seq + coverage

Phase 3: Compile correctness + RAL consistency + test mapping + quality scoring + auto-fix suggestions

Phase 2: AI quality scoring, sequence library, virtual sequences, coverage crosses, scoreboard integration

Add cross-file validator+spec coverage score; fix stray brace+hardcoded widths in sequence template; enhance sequence_item

Enhance sequence_item template: field automation, typed error injection, do_print, dynamic widths, unsigned delay

Fix Jinja2 __setitem__ hack on int objects in all 4 templates; compute addr_bits/data_width inline via map|max filters

Fix Jinja2 brace conflict in coverage_collector.sv.j2: use SV '1 literal instead of {N{1'b1}}"

Phase 1: spec-driven templates + SV checker + quality score + ZIP export

Add coverage integration, interrupt/RX/loopback validation, scoreboard hooks, and randomization control

feat: scoreboard coverage expansion, interrupt causes, injection tags, burst summaries, history pruning

feat: scoreboard burst, interrupt, injection, coverage improvements

feat: Advanced ML V2 Model with Reinforcement Learning

feat: Add enhanced ML model with retrieval-augmented generation

Initial commit: UVM testbench generator with coverage-driven auto-training