Wave 7: Phase 2 features - sync --all, external refs, cross-alias discovery, CI/CD, reliability tests (bd-1ky, bd-1bp, bd-1rk, bd-1lj, bd-gvr, bd-1x5)

- Sync --all with async concurrency, per-host throttling, failure budgets, resumable execution
- External ref bundling at fetch time with origin tracking
- Cross-alias discovery (--all-aliases) for list and search commands
- CI/CD pipeline (.gitlab-ci.yml), cargo-deny config, Dockerfile, install script
- Reliability test suite: crash consistency (8 tests), lock contention (3 tests), property-based (4 tests)
- Criterion performance benchmarks (5 benchmarks)
- Bug fix: doctor --fix now repairs missing index.json when raw.json exists
- Bug fix: shared $ref references no longer incorrectly flagged as circular (refs.rs)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

deny.toml

@@ -0,0 +1,53 @@
+# cargo-deny configuration for swagger-cli
+# https://embarkstudios.github.io/cargo-deny/
+
+[graph]
+targets = [
+    "aarch64-apple-darwin",
+    "x86_64-apple-darwin",
+    "x86_64-unknown-linux-gnu",
+    "aarch64-unknown-linux-gnu",
+]
+
+[advisories]
+db-path = "~/.cargo/advisory-db"
+db-urls = ["https://github.com/rustsec/advisory-db"]
+vulnerability = "deny"
+unmaintained = "warn"
+unsound = "warn"
+yanked = "deny"
+notice = "warn"
+
+[licenses]
+unlicensed = "deny"
+copyleft = "deny"
+allow = [
+    "MIT",
+    "Apache-2.0",
+    "BSD-2-Clause",
+    "BSD-3-Clause",
+    "ISC",
+    "Zlib",
+    "Unicode-3.0",
+    "Unicode-DFS-2016",
+    "OpenSSL",
+]
+confidence-threshold = 0.8
+
+[[licenses.clarify]]
+name = "ring"
+expression = "MIT AND ISC AND OpenSSL"
+license-files = [
+    { path = "LICENSE", hash = 0xbd0eed23 },
+]
+
+[bans]
+multiple-versions = "warn"
+wildcards = "deny"
+highlight = "all"
+
+[sources]
+unknown-registry = "deny"
+unknown-git = "deny"
+allow-registry = ["https://github.com/rust-lang/crates.io-index"]
+allow-git = []