feat: M3.8.1 phase 1 — content router + log compressor

ContentRouter uses Google Magika ML for content detection (<1ms) with regex
fallback. Detects JSON, code, logs, diffs, config, text.

LogCompressor reuses M3.7.7 patterns (markers, cascade, strip_ansi) to
shrink build logs by keeping errors/stacks and dropping noise.

17 unit tests passing:
- router: json, code, diff, log, text detection
- log: error lines, stack traces, ansi stripping, compression
- optimizer: token estimation, passthrough mode

Magika + ort ONNX runtime added to Cargo.toml.

Cargo.lock

@@ -380,6 +380,12 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
+[[package]]
+name = "base64"
+version = "0.23.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac07cdecf99051d9a5238b80f35af32cdeba5b336e55d957b318b50137e18da5"
+
 [[package]]
 name = "base64ct"
 version = "1.8.3"
@@ -854,7 +860,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
 dependencies = [
  "const-oid 0.9.6",
- "pem-rfc7468",
+ "pem-rfc7468 0.7.0",
+ "zeroize",
+]
+
+[[package]]
+name = "der"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a69dedd701da44b0536442edf09c81a64b0ab97a7a4a5e3d1971f00027cbc63d"
+dependencies = [
+ "pem-rfc7468 1.0.0",
  "zeroize",
 ]
 
@@ -1412,6 +1428,12 @@ dependencies = [
  "digest 0.11.3",
 ]
 
+[[package]]
+name = "hmac-sha256"
+version = "1.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec9d92d097f4749b64e8cc33d924d9f40a2d4eb91402b458014b781f5733d60f"
+
 [[package]]
 name = "home"
 version = "0.5.12"
@@ -1919,6 +1941,12 @@ version = "0.4.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f9f8bd3e56ce4dfc153cf470fffbfa98c7620958b312ca5c3a4b8d5181fd13c6"
 
+[[package]]
+name = "lzma-rust2"
+version = "0.15.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e20f57f9918e5bd7bc58c22cdd70a6afc7375d4dd9683af5f2b34bd3d2bba619"
+
 [[package]]
 name = "macro_rules_attribute"
 version = "0.1.3"
@@ -1935,6 +1963,28 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58093314a45e00c77d5c508f76e77c3396afbbc0d01506e7fae47b018bac2b1d"
 
+[[package]]
+name = "magika"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3aee5ecdbd182547ca3dfcd74c5bcd7f8c57384ad03cb79ef6e3bdf8d56abcdf"
+dependencies = [
+ "ndarray",
+ "ort",
+ "thiserror 1.0.69",
+ "tokio",
+]
+
+[[package]]
+name = "matrixmultiply"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f607c237553f086e7043417a51df26b2eb899d3caff94e6a67592ff992fedc7"
+dependencies = [
+ "autocfg",
+ "rawpointer",
+]
+
 [[package]]
 name = "md-5"
 version = "0.10.6"
@@ -2013,6 +2063,9 @@ dependencies = [
  "anyhow",
  "futures",
  "hex",
+ "magika",
+ "ort",
+ "regex",
  "serde",
  "serde_json",
  "serde_yaml",
@@ -2157,6 +2210,21 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "ndarray"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "520080814a7a6b4a6e9070823bb24b4531daac8c4627e08ba5de8c5ef2f2752d"
+dependencies = [
+ "matrixmultiply",
+ "num-complex",
+ "num-integer",
+ "num-traits",
+ "portable-atomic",
+ "portable-atomic-util",
+ "rawpointer",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -2202,6 +2270,15 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "num-complex"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "num-conv"
 version = "0.2.2"
@@ -2354,6 +2431,30 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "ort"
+version = "2.0.0-rc.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7de3af33d24a745ffb8fab904b13478438d1cd52868e6f17735ef6e1f8bf133"
+dependencies = [
+ "ndarray",
+ "ort-sys",
+ "smallvec",
+ "tracing",
+ "ureq",
+]
+
+[[package]]
+name = "ort-sys"
+version = "2.0.0-rc.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7b497d21a8b6fbb4b5a544f8fadb77e801a09ae0add9e411d31c6f89e3c1e90"
+dependencies = [
+ "hmac-sha256",
+ "lzma-rust2",
+ "ureq",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.5"
@@ -2425,6 +2526,15 @@ dependencies = [
  "base64ct",
 ]
 
+[[package]]
+name = "pem-rfc7468"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6305423e0e7738146434843d1694d621cce767262b2a86910beab705e4493d9"
+dependencies = [
+ "base64ct",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.2"
@@ -2474,7 +2584,7 @@ version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c8ffb9f10fa047879315e6625af03c164b16962a5368d724ed16323b68ace47f"
 dependencies = [
- "der",
+ "der 0.7.10",
  "pkcs8",
  "spki",
 ]
@@ -2485,7 +2595,7 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
 dependencies = [
- "der",
+ "der 0.7.10",
  "spki",
 ]
 
@@ -2524,6 +2634,21 @@ dependencies = [
  "wiremock",
 ]
 
+[[package]]
+name = "portable-atomic"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05c8b63e8d9609db387f0324918f81d68fe27748f084ef092fb35954d0539a85"
+
+[[package]]
+name = "portable-atomic-util"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a106d1259c23fac8e543272398ae0e3c0b8d33c88ed73d0cc71b0f1d902618"
+dependencies = [
+ "portable-atomic",
+]
+
 [[package]]
 name = "postgres"
 version = "0.19.14"
@@ -2668,6 +2793,12 @@ version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "63b8176103e19a2643978565ca18b50549f6101881c443590420e4dc998a3c69"
 
+[[package]]
+name = "rawpointer"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60a357793950651c4ed0f3f52338f53b2f809f32d83a07f72909fa13e4c6c1e3"
+
 [[package]]
 name = "rayon"
 version = "1.12.0"
@@ -2885,6 +3016,15 @@ dependencies = [
  "base64 0.21.7",
 ]
 
+[[package]]
+name = "rustls-pki-types"
+version = "1.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f4925028c7eb5d1fcdaf196971378ed9d2c1c4efc7dc5d011256f76c99c0a96"
+dependencies = [
+ "zeroize",
+]
+
 [[package]]
 name = "rustls-webpki"
 version = "0.101.7"
@@ -3182,6 +3322,17 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "socks"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c3dbbd9ae980613c6dd8e28a9407b50509d3803b57624d5dfe8315218cd58b"
+dependencies = [
+ "byteorder",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "spin"
 version = "0.9.9"
@@ -3198,7 +3349,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
 dependencies = [
  "base64ct",
- "der",
+ "der 0.7.10",
 ]
 
 [[package]]
@@ -3976,6 +4127,36 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
+[[package]]
+name = "ureq"
+version = "3.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "972d7902c8735f2695410b8aed7df6ed12a47394aa1c8d7af49f0497b731a94d"
+dependencies = [
+ "base64 0.23.1",
+ "der 0.8.1",
+ "log",
+ "native-tls",
+ "percent-encoding",
+ "rustls-pki-types",
+ "socks",
+ "ureq-proto",
+ "utf8-zero",
+ "webpki-root-certs",
+]
+
+[[package]]
+name = "ureq-proto"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da5f78b09e6941e1a0f2e30e695e4b120377b54d5e0aec11b594bb57b3971613"
+dependencies = [
+ "base64 0.23.1",
+ "http 1.5.0",
+ "httparse",
+ "log",
+]
+
 [[package]]
 name = "url"
 version = "2.5.8"
@@ -3994,6 +4175,12 @@ version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
 
+[[package]]
+name = "utf8-zero"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8c0a043c9540bae7c578c88f91dda8bd82e59ae27c21baca69c8b191aaf5a6e"
+
 [[package]]
 name = "utf8_iter"
 version = "1.0.4"
@@ -4159,6 +4346,15 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "webpki-root-certs"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b96554aa2acc8ccdb7e1c9a58a7a68dd5d13bccc69cd124cb09406db612a1c9b"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "webpki-roots"
 version = "0.25.4"