claude@clouddev1
c940ba9cf2
Delete the chumsky-side command_parser and its per-command sub-parsers, error humanisation helpers, and keyword/punct/ ident/value-literal combinators. The unified-grammar walker in `crate::dsl::walker` is now the sole parse path. parse_tokens flow (post-Phase F): 1. lex(input) — still produces the Token stream that completion / highlighting / echo-line consumers depend on. 2. try_walker_route(source) — walker handles every entry keyword in REGISTRY (20 commands across 14 entry words). 3. unknown_command_error(source) — synthetic ParseError for inputs whose first identifier-shape token isn't a registered entry word. Wording mirrors the chumsky-side "expected one of `add`, `change`, …, found `<word>`" structural error the legacy top-level Choice produced. Cargo.toml: chumsky dependency dropped (no remaining uses). Cargo.lock regenerated; ~58 lines net reduction in the dependency graph. Scope intentionally deferred (separate follow-up): - dsl/lexer.rs, dsl/keyword.rs, dsl/ident_slot.rs, dsl/usage.rs::REGISTRY: still consumed by completion.rs, input_render.rs, app.rs, theme.rs, db.rs, runtime.rs, friendly/keys.rs. Removing these requires migrating each consumer to the walker's per-byte-class output / grammar REGISTRY / IdentSource enum. Substantial blast radius; worth a dedicated session. - parse.token.keyword.* catalog entries (40+): used by usage.rs and parse-error rendering for the unmigrated consumers above. Collapse follows after the consumer migration. Tests: - All existing parser tests (`dsl::parser::tests`) ported in place; they call `parse_command` which now flows through the walker. 844 passed, 0 failed, 1 ignored — same count as Phase E (no test additions, no regressions). - cargo clippy --all-targets -- -D warnings clean. - cargo build (release-like dev profile) succeeds.