claude@clouddev1
cafc455c8a
New `input_render` module with `render_input_runs(input, cursor_byte, theme) -> Vec<StyledRun>`. Lexes the input, assigns each token its `theme.token_color`, preserves whitespace gaps as `theme.fg` runs, and injects the cursor by splitting the run that contains it into before/under/after sub-spans (under marked Modifier::REVERSED). End-of-input cursor is an empty-range sentinel rendered as an inverted space. ui::render_input_panel switches over EffectiveMode: simple mode goes through render_input_runs + a small runs_to_spans helper that borrows from the input string; advanced modes (persistent + one-shot `:`) keep the previous plain before/under/after rendering since the DSL lexer doesn't speak SQL (ADR-0022 §12). Multi-byte UTF-8 in string literals is handled by walking to the next char boundary when splitting the cursor run, mirroring the previous renderer. Tests: 682 passing, 0 failing, 1 ignored (672 baseline → +10: 9 input_render unit tests covering each token class, cursor placements, multi-byte, full-command shape; +1 new "all token classes" UI snapshot). Clippy clean. Caveat (noted inline in the new snapshot test): the TestBackend/render_to_string path records text symbols only, not ratatui style. The new snapshot is therefore a text-layout regression net; the unit tests in input_render::tests are the authoritative regression net for colour mappings. Stage 3 wires the same colouring into simple-mode echo lines in the output panel.