Added

• Keyseq: deterministic planner turning a UTF-8 string into a sequence of typing events (Insert, Delete, Sleep, Idle, Sound). Explicit Random.State.t, no Random.self_init.
• Keyseq_terminal: terminal renderer for Keyseq event sequences — real-time Sleep/Idle timing, ANSI backspace, cursor blink during Idle.
• Keyseq_terminal.wrap: word-wrap to a given terminal width, never breaking inside a word.
• Test suite: round-trip, Insert/Delete balance, non-negative durations, determinism, invalid UTF-8, invalid config, punctuation ordering, typo degeneration, sound pairing, wrap behavior.
• examples/demo.ml: runnable example.
• opam packaging: keyseq package (ISC), keyseq.terminal sub-library.