Validate exact Vision boundary values and real-project regression

Tests/Integration/RenderIntegration.swift

@@ -29,6 +29,35 @@ struct RenderIntegration {
 
     @MainActor
     static func main() async throws {
+        if let path = ProcessInfo.processInfo.environment["GROWTHLAPSE_VALIDATE_PROJECT"] {
+            let validator = VideoProcessor()
+            guard let project = validator.loadProject(from: URL(fileURLWithPath: path)) else {
+                throw TestFailure.failed("Real project validation failed: \(validator.state)")
+            }
+            print("PASS real project load: \(project.clips.count) clips")
+            if ProcessInfo.processInfo.environment["GROWTHLAPSE_TEST_REAL_DRAFT"] == "1" {
+                let original = try Data(contentsOf: URL(fileURLWithPath: path))
+                var subset = project
+                subset.clips = project.clips.filter { $0.displayName.hasPrefix("063") || $0.displayName.hasPrefix("066") }
+                try require(subset.clips.count == 2, "Expected two selected regression clips")
+                validator.project = subset
+                validator.startDraft(settings: SettingsStore.load())
+                let deadline = Date().addingTimeInterval(180)
+                while validator.state.isRunning && Date() < deadline {
+                    try await Task.sleep(nanoseconds: 100_000_000)
+                }
+                guard let draft = validator.draftOutput else {
+                    validator.cancel()
+                    throw TestFailure.failed("Real draft failed: \(validator.state)\n\(validator.logs.suffix(25).joined(separator: "\n"))")
+                }
+                try require(FileManager.default.fileExists(atPath: draft.path), "Real draft missing")
+                let after = try Data(contentsOf: URL(fileURLWithPath: path))
+                try require(original == after, "Real draft changed source project")
+                print("PASS actual affected clips rendered as isolated draft: \(draft.path)")
+                validator.discardDraft()
+                return
+            }
+        }
         try ContinuityChecks.run()
         let defaults = RenderSettings()
         try require(defaults.inputFolder == nil && defaults.outputFile == nil
@@ -198,7 +227,7 @@ struct RenderIntegration {
 
         // Vision's single-precision ±pi must survive project validation unchanged.
         var angleProject = second
-        let visionPi = Double(Float.pi)
+        let visionPi = 3.1415927410125732 // Exact value observed in Vision JSON; not Swift Float.pi
         angleProject.clips[0].visualAnalysis = ClipVisualAnalysis(sourceSignature: "angle-test", samples: [
             VisualSample(time: 0, faceCount: 1,
                 pose: FacePose(x: 0.5, y: 0.5, height: 0.3, yaw: visionPi,
@@ -210,10 +239,10 @@ struct RenderIntegration {
         let accepted = angleLoader.loadProject(from: angleURL)
         try require(accepted?.clips[0].visualAnalysis == angleProject.clips[0].visualAnalysis,
             "Valid Vision Float.pi angles rejected or altered")
-        angleProject.clips[0].visualAnalysis!.samples[0].pose!.roll = 3.15
+        angleProject.clips[0].visualAnalysis!.samples[0].pose!.roll = Double.pi + 0.00001
         try JSONEncoder().encode(angleProject).write(to: angleURL)
         try require(angleLoader.loadProject(from: angleURL) == nil, "Out-of-range angle accepted")
-        print("PASS Vision Float.pi project round-trip and invalid-angle rejection")
+        print("PASS Vision exact boundary project round-trip and invalid-angle rejection")
 
         // Exercise failure after normalization, while FFmpeg is producing the final video.
         let wrapper = root.appendingPathComponent("ffmpeg-fail")