chore: bump to 21.11.0 with pub API tests, standards compliance, and two bug fixes

[eastspire]

Summary

Brings the workspace to full rust-standards compliance (47/47, exit 0) and closes the pub API test gaps in every crate. Bumps 21.10.0 → 21.11.0.

Note on release gating: publish and release in .github/workflows/rust.yml are gated on push to master, so this PR runs setup / Push / check / tests / clippy / build but will not publish to crates.io. Publishing happens on merge.

Tests — 493 → 693, 0 failures

Crate	Before	After
http-constant	0	21
http-compress	1	17
http-request	12	104
hyperlane-cli	12	49
plugin/websocket	1	37
http-type	304	304
hyperlane-core	61	61
hyperlane-macros	100 doctests	100

The http-constant tests assert the X / X_BYTES / X_U8 consistency that its ~9000 constants depend on, plus header/mime/delimiter invariants. Writing them surfaced five wrong assumptions that the code corrected: BR is "\n" not "\r"; LEFT_BRACKET is "{" (square brackets are a separate constant set); log levels are lowercase except TRACE; DEFAULT_HOST_IPV4_ADDR is 0.0.0.0; and low-security limits are usize::MAX, so the ordering runs opposite to first intuition.

Bug fixes

• http-compress — Content-Encoding: br shipped gzip bytes. brotli::encode was a copy-paste of gzip using GzEncoder (its own doc comment said "Compresses the given data using Gzip compression") while brotli::decode used a real brotli Decompressor. Since type/src/response/impl.rs:651 encodes server bodies and request/src/response/impl.rs:192 decodes them, a br response could not be decoded by any client. Now uses brotli::CompressorWriter; all three algorithms round-trip.
• plugin/websocket — BroadcastType<&u64> never compiled. impl BroadcastTypeTrait for &u64 {} was missing entirely, with a truncated doc comment (/// Allows references to \u64` to be used as) left behind. All 35 sibling &Timpls exist. Confirmed pre-existing viagit show HEAD`, not introduced here.
• Panicking getters on Option<Copy>. ServerConfig::{nodelay,ttl} and CookieBuilder::{max_age,secure,http_only} derived getters that unwrap and panic on None. The codebase consistently uses try_get_*, but the panicking variant stayed publicly reachable. Annotated with #[get(type(copy))].

Standards compliance — 35/45 → 47/47

• 123 untyped let bindings, 482 non-compliant doc comments, 246 hardcoded strings → const.rs (10 new files carry the literals)
• 105 qualified std:: paths in sub-files hoisted into each crate's lib.rs
• impl Trait parameters → explicit generics + where clauses
• direct self.field access → accessor methods
• websocket lib.rs doc block and import ordering

Two caveats on this, both deliberate and revertible:

1. §9.2 broke a public API. Server::route<S> became route<S, P> because impl Trait is banned in parameters. This invalidates turbofish call sites (server.route::<Index>("/") → route::<Index, &str>("/")); 41 in-repo call sites were updated. It also contradicts the 5-line example in the skill's own docs. Reverting 3 signatures is a much smaller change if the ergonomic form is preferred over §9.2 compliance.
2. std::string::String inside quote! bodies (macros/src/request/fn.rs:348,381) was rewritten to the prelude String to satisfy check 47. These macros have no in-workspace consumer, so the 693 tests do not exercise the change; it is only identical in crates that do not shadow String.

Known follow-ups (not addressed here)

• RequestConfig is pub in config/struct.rs but re-exported pub(crate), so downstream code hits E0433 and HttpRequest::{config,set_config,get_config} are unusable by name.
• HttpResponse::from_bytes rejoins multi-line bodies with \n instead of \r\n, so bytes() does not round-trip the wire.
• execute_template calls ensure_directory before validating the missing-subtype argument, so an invalid call still creates ./application/model/.
• Seven Option<String> fields (type/src/cookie/struct.rs, type/src/panic/struct.rs) generate the same panicking-getter shape as the bug fixed above. Check 46 is scoped to Option<Copy>, so it does not flag them, and #[get(type(copy))] does not apply to non-Copy.

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