Implement n-gram tolerance stage rules and optimizer principles doc.

Add configurable BERT stage target and stage visibility in optimizer.

Add ensemble phrase strategy mode for optimizer.

Add configurable phrase strategy mode for LLM optimizer.

Add multi-objective candidate utility for optimizer decisions.

Revert "Improve universal chunk selection with structural and diversity signals."

Improve universal chunk selection with structural and diversity signals.

Refine LLM prompt for semantic-vector chunk optimization.

Apply local-first accumulation for chunk-level optimizer progress.

Accept incremental BERT phrase gains during optimization.

Add semantic gap tolerance and detailed gap attribution.

Improve optimizer attribution and multi-edit batch search.

Add deep LLM-input diagnostics for chunk optimization debugging.

Implement two-stage optimizer acceptance with multi-chunk batching.

Improve optimizer span selection to avoid repeated chunk edits.

Expand full functional documentation with algorithmic details.

Add comprehensive functional documentation and README links