Fix codexbar cost SIGSEGV on Linux (Bundle.allBundles in isRunningTests)

Sources/CodexBarCore/Generated/CodexParserHash.generated.swift

@@ -1,5 +1,5 @@
 // Generated by Scripts/regenerate-codex-parser-hash.sh. Do not edit by hand.
 
 enum CodexParserHash {
-    static let value = "8050a4faf4fddb96"
+    static let value = "6293f505c4cbbce8"
 }

Sources/CodexBarCore/Vendored/CostUsage/CostUsageCustomPricing.swift

@@ -74,7 +74,14 @@ public struct CostUsageCustomPricing: Sendable, Equatable {
         if keys.contains(where: { ProcessInfo.processInfo.environment[$0] != nil }) {
             return true
         }
+        #if os(macOS)
         return Bundle.allBundles.contains { $0.bundlePath.hasSuffix(".xctest") }
+        #else
+        // Bundle.allBundles crashes on Linux (swift-corelibs-foundation). SwiftPM
+        // builds test executables with a `.xctest` suffix, so detect the test
+        // process from the main executable instead of enumerating bundles.
+        return Bundle.main.executableURL?.path.hasSuffix(".xctest") ?? false
+        #endif
     }
 
     public static func parse(_ data: Data) -> CostUsageCustomPricing {

Sources/CodexBarCore/Vendored/OpenCodexUsage/OpenCodexUsageModels.swift

@@ -166,6 +166,13 @@ public enum OpenCodexUsageLog {
         if NSClassFromString("XCTestCase") != nil {
             return true
         }
+        #if os(macOS)
         return Bundle.allBundles.contains { $0.bundlePath.hasSuffix(".xctest") }
+        #else
+        // Bundle.allBundles crashes on Linux (swift-corelibs-foundation). SwiftPM
+        // builds test executables with a `.xctest` suffix, so detect the test
+        // process from the main executable instead of enumerating bundles.
+        return Bundle.main.executableURL?.path.hasSuffix(".xctest") ?? false
+        #endif
     }
 }

TestsLinux/PlatformGatingTests.swift

@@ -236,6 +236,29 @@ struct PlatformGatingTests {
         #expect(Bool(true))
         #endif
     }
+
+    @Test
+    func `custom pricing test detector is safe on Linux without test markers`() {
+        #if os(Linux)
+        let pricing = CostUsageCustomPricing.load(environment: [:])
+        #expect(pricing.fingerprint == "none" || !pricing.fingerprint.isEmpty)
+        #else
+        #expect(Bool(true))
+        #endif
+    }
+
+    @Test
+    func `OpenCodex usage log URL resolution is safe on Linux without test markers`() {
+        #if os(Linux)
+        // Under test runner, ProcessInfo has test markers, so isRunningTests returns true safely and returns nil without crashing
+        let logURL = OpenCodexUsageLog.usageLogURL(environment: [:])
+        #expect(logURL == nil)
+        let overriddenURL = OpenCodexUsageLog.usageLogURL(environment: ["OPENCODEX_HOME": "/tmp/test"])
+        #expect(overriddenURL?.path == "/tmp/test/usage.jsonl")
+        #else
+        #expect(Bool(true))
+        #endif
+    }
     private func makeClaudeAutoContext(env: [String: String] = [:]) -> ProviderFetchContext {
         self.makeClaudeContext(sourceMode: .auto, env: env)
     }