Release Format Lab 0.1.0

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+# Architecture
+
+The immutable catalog defines formats, domain properties, directed conversion
+edges, availability, and a per-property status. A bounded depth-first search
+enumerates acyclic paths of at most four conversions. Routes are sorted by the
+worst status for the user-selected properties and then by conversion count;
+catalog results remain explicitly expected rather than measured.
+
+The executable data lab parses JSON, NDJSON, CSV, and a typed XML record dialect
+into a bounded canonical list of records. Every selected edge serializes and
+re-parses the canonical data, so losses accumulate along the actual path. The
+target is then serialized back to the source format. Stable property signatures
+compare record/field order, names, types, nulls, nesting, numeric values, and
+Unicode text. Metadata remains not-tested because the canonical model does not
+pretend to represent arbitrary wrappers, comments, namespaces, or schemas.
+
+Limits are 2 MiB input, 10,000 records, 200 fields per record, 500,000 top-level
+values, JSON depth 64, 200,000 JSON nodes, and 8 MiB output.