feat: Add missing detector crates for Swift, Objective-C, and Kotlin

- Create detector-swift crate for Swift language support
- Create detector-objc crate for Objective-C language support
- Create detector-kotlin crate for Kotlin language support
- Update main Cargo.toml workspace to include new detector crates
- Update CLI Cargo.toml to depend on new detector crates
- Update CLI main.rs to instantiate new detectors
- All tests pass and scanner now supports 10 languages total

Languages now supported:
- C, C++, Java, Go, Rust, Python, PHP (existing)
- Swift, Objective-C, Kotlin (new)

This completes the detector infrastructure for all pattern languages.

Author: script3r

Cargo.lock

@@ -8,6 +8,9 @@ members = [
     "crates/detector-rust",
     "crates/detector-python",
     "crates/detector-php",
+    "crates/detector-swift",
+    "crates/detector-objc",
+    "crates/detector-kotlin",
     "crates/cli",
 ]
 resolver = "2"

Cargo.toml

@@ -18,6 +18,9 @@ aho-corasick = { workspace = true }
 crossbeam-channel = { workspace = true }
 indicatif = "0.17"
 scanner-core = { path = "../scanner-core" }
+detector-swift = { path = "../detector-swift" }
+detector-objc = { path = "../detector-objc" }
+detector-kotlin = { path = "../detector-kotlin" }
 
 [[bin]]
 name = "cryptofind"

crates/cli/Cargo.toml

@@ -132,6 +132,21 @@ fn main() -> Result<()> {
             &[Language::Php],
             reg.clone(),
         )),
+        Box::new(PatternDetector::new(
+            "detector-swift",
+            &[Language::Swift],
+            reg.clone(),
+        )),
+        Box::new(PatternDetector::new(
+            "detector-objc",
+            &[Language::ObjC],
+            reg.clone(),
+        )),
+        Box::new(PatternDetector::new(
+            "detector-kotlin",
+            &[Language::Kotlin],
+            reg.clone(),
+        )),
     ];
 
     let mut cfg = Config::default();

crates/cli/src/main.rs

@@ -0,0 +1,13 @@
+[package]
+name = "detector-kotlin"
+version = "0.1.0"
+edition = "2021"
+license = "Apache-2.0"
+
+[dependencies]
+scanner-core = { path = "../scanner-core" }
+anyhow = { workspace = true }
+
+[lib]
+name = "detector_kotlin"
+path = "src/lib.rs"

crates/detector-kotlin/Cargo.toml

@@ -0,0 +1,10 @@
+use scanner_core::{Detector, Language, PatternDetector, PatternRegistry};
+use std::sync::Arc;
+
+pub fn make(registry: Arc<PatternRegistry>) -> Box<dyn Detector> {
+    Box::new(PatternDetector::new(
+        "detector-kotlin",
+        &[Language::Kotlin],
+        registry,
+    ))
+}

crates/detector-kotlin/src/lib.rs

@@ -0,0 +1,13 @@
+[package]
+name = "detector-objc"
+version = "0.1.0"
+edition = "2021"
+license = "Apache-2.0"
+
+[dependencies]
+scanner-core = { path = "../scanner-core" }
+anyhow = { workspace = true }
+
+[lib]
+name = "detector_objc"
+path = "src/lib.rs"

crates/detector-objc/Cargo.toml

@@ -0,0 +1,10 @@
+use scanner_core::{Detector, Language, PatternDetector, PatternRegistry};
+use std::sync::Arc;
+
+pub fn make(registry: Arc<PatternRegistry>) -> Box<dyn Detector> {
+    Box::new(PatternDetector::new(
+        "detector-objc",
+        &[Language::ObjC],
+        registry,
+    ))
+}

crates/detector-objc/src/lib.rs

@@ -0,0 +1,13 @@
+[package]
+name = "detector-swift"
+version = "0.1.0"
+edition = "2021"
+license = "Apache-2.0"
+
+[dependencies]
+scanner-core = { path = "../scanner-core" }
+anyhow = { workspace = true }
+
+[lib]
+name = "detector_swift"
+path = "src/lib.rs"

crates/detector-swift/Cargo.toml

@@ -0,0 +1,10 @@
+use scanner_core::{Detector, Language, PatternDetector, PatternRegistry};
+use std::sync::Arc;
+
+pub fn make(registry: Arc<PatternRegistry>) -> Box<dyn Detector> {
+    Box::new(PatternDetector::new(
+        "detector-swift",
+        &[Language::Swift],
+        registry,
+    ))
+}