claude@clouddev1
7bdd3987e1
Replaces the lex()-driven `base_runs` span builder in `input_render.rs` with `walker::highlight_runs`. The new walker-side `dsl::walker::highlight` module returns per-byte `HighlightClass` assignments for every token shape in the source: - For commands the walker engages on, `WalkResult::per_byte_class` is the authoritative source (keyword / identifier / number / string / punct / flag). - Trailing junk past a partial match — and inputs the walker doesn't engage on at all (no registered entry word) — fall through to a byte-shape scanner over `lex_helpers` so unknown command words, stray punctuation, and unterminated strings still highlight sensibly. `Theme::highlight_class_color` is the walker-side analogue of `token_color(&TokenKind)`; the renderer reads `walker::highlight_runs` output and looks up colours through it. `token_color` and the `lex()` pre-pass remain in place for now — the lexer module is still consumed by usage rendering and completion until the remaining Phase F steps land. `HighlightClass`'s and `WalkResult::per_byte_class`'s `#[allow(dead_code)]` annotations come off — they're now part of the production highlight path. Tests: - 16 new tests under `dsl::walker::highlight` cover end-to-end walks, byte-shape fallbacks (unknown commands, bare flags, numbers, punctuation), UTF-8 codepoint advance, and trailing- token handling after partial walks. - Existing `input_render` tests pass unchanged. - 860 total tests passing (727 lib + 133 integration), 1 ignored. Clippy clean with `nursery` lints + `-D warnings`.