Pin core, generation, generators and runtime conformance at their reorganized tips - #147

Moves the CLI to core 1669a2f (which has core#239: unverified::protocols() gives each reason already rendered and quoted) and to the generators and runtime that agree on it, with the runtime reorganization's paths (ComlineProject/runtime#111) folded in.

Pins

Generation is at 6a73541, not at generation's current master (a393c8f): comline-rust eb04c13 and comline-typescript 4cad8af pin 6a73541, and Cargo only unifies a git dependency across identical rev strings. a393c8f differs from 6a73541 only in generation's conformance goldens and dev-deps (generation#131), so the generator crates are the same code. The fixture generators are real pins the tests build (tests/cli/external.rs, conformance.rs), and are meant to be the same revs as the CLI's so output compares byte for byte.

Code

src/commands/accept.rs: the reason now arrives rendered and quoted, so reason: reason.map(str::to_string) becomes reason, and the message format!(": \"{r}\"") becomes format!(": {r}"). No fallout in src/commands/conformance.rs from the runtime-conformance bump: it uses runner::{judge, parse_reply, questions, Corpus, FactProof, OPS_PROTOCOL}, Answer, Case, Outcome and Profile, whose public surface didn't change in runtime#88..main (the catalog-backed fact constants were added).

Lockfiles

Cargo.lock and the two fixture lockfiles are tracked and were updated by cargo fetch only (no cargo update, generate-lockfile, or build). Package-level diff, by name and version:

• Cargo.lock (418 -> 396 packages): the pinned git crates above change source; comline-catalog is added twice (the specification's, which core already used by pin, and the runtime's vendored copy, which comline-runtime-conformance now depends on); and these registry crates are dropped because the runtime no longer builds package_abi: abi_stable{,_derive,_shared}, as_derive_utils, const_panic, core_extensions{,_proc_macros}, generational-arena, libloading (0.7.4, 0.8.9), lock_api, parking_lot{,_core}, paste, redox_syscall, repr_offset, rustc_version, tstr{,_proc_macros}, typed-arena, typewit, winapi*. No registry crate changes version.
• tests/fixtures/conformance/Cargo.lock (55 -> 22): the three runtime crates move to 3b9cc9d, comline-catalog is added, and the same kind of removals, plus a few others that only package_abi pulled in (crossbeam-*, libc, scopeguard, semver, smallvec, windows-link, syn 1.0.109, bitflags, cfg-if). No version changes.
• tests/fixtures/generators/Cargo.lock (68 -> 69): core (d11d82b -> 1669a2f), the generation crates and comline-codegen-rust change source; comline-catalog is added. No registry change.

Part of ComlineProject/runtime#111; follows core#239 (and core#240, generation#130/#131, comline-rust#116/#117, comline-typescript#155). Closes no issue.

Testing

Not built or run locally; CI covers it (build, test, clippy, rustfmt, wasm fixtures).