Switch manifest serialization to CBOR

Replace JSON-based bundle manifest with a CBOR-encoded format. The manifest
is now a canonical CBOR map with order-strict key decoding, raw 32-byte hash
payloads (instead of hex-encoded JSON), and compact binary representation.

test/Spec.hs

@@ -2041,7 +2041,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
       result env @?= okT Leaf (bytesT ([101,102,103] ++ nodesBytes))
 
   , testCase "readArborixNodesSection: reads id fixture bundle" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/id.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/id.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right _ -> do
@@ -2053,7 +2053,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
           result env @?= ofNumber 0
 
   , testCase "readArborixNodesSection: reads notQ fixture bundle" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/notQ.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/notQ.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right _ -> do
@@ -2065,7 +2065,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
           result env @?= ofNumber 0
 
   , testCase "readArborixNodesSection: reads map fixture bundle" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/map.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/map.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right _ -> do
@@ -2077,7 +2077,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
           result env @?= ofNumber 0
 
   , testCase "readArborixExecutableFromHash: reconstructs id fixture root" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/id.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/id.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of
@@ -2093,7 +2093,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
             result env @?= ofNumber 0
 
   , testCase "readArborixExecutableFromHash: reconstructs notQ fixture root" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/notQ.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/notQ.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of
@@ -2109,7 +2109,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
             result env @?= ofNumber 0
 
   , testCase "readArborixExecutableFromHash: reconstructs map fixture root" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/map.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/map.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of
@@ -2125,7 +2125,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
             result env @?= ofNumber 0
 
   , testCase "readArborixExecutableFromHash: executes id fixture root" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/id.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/id.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of
@@ -2141,7 +2141,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
             result env @?= ofNumber 42
 
   , testCase "readArborixExecutableFromHash: executes notQ fixture on true" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/notQ.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/notQ.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of
@@ -2157,7 +2157,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
             result env @?= falseT
 
   , testCase "readArborixExecutableFromHash: executes notQ fixture on false" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/notQ.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/notQ.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of
@@ -2173,7 +2173,7 @@ binaryReaderTests = testGroup "Binary Reader Tests"
             result env @?= trueT
 
   , testCase "readArborixExecutableFromHash: executes map fixture root" $ do
-      fixtureBytes <- BS.readFile "test/fixtures/map.tri.bundle"
+      fixtureBytes <- BS.readFile "test/fixtures/map.arborix"
       case decodeBundle fixtureBytes of
         Left err -> assertFailure $ "decodeBundle failed: " ++ err
         Right bundle -> case bundleRoots bundle of