[VictorVanthilt]

TNRKit v0.8.0

Breaking

• CFTData now has a modular_parameter field holding the elementary modular parameter of a single tensor. central_charge is now always computed and is no longer Union{E, Missing}. The CFTData and StructuredVector type parameters changed: the unused V parameter was removed (#187, #192).
• Scaling dimensions are now rescaled using the extracted modular parameter instead of assuming the shape's nominal aspect ratio (#187).
• Removed the stale central_charge export. It had no matching function; use the central_charge field of CFTData or extract_tau_and_c instead (#187).
• TNRKit now requires TensorKit v0.17 (#199).

Added

• extract_tau_and_c, which extracts the modular parameter and central charge from transfer matrices. CFTData gains a fast_tau_alg keyword (#187).
• Quantum 1+1D models: quantum_ising_chain and kitaev_chain, plus the helpers gate_to_tensor, vertical_stack_exp and vertical_stack_linear for building partition functions from quantum Hamiltonians. Documentation is included (#189, #192).
• CFT spectrum extraction for fermionic tensors, including the [1, 1, 0] transfer matrix (#192).
• vcat/reduce(vcat, ...) for StructuredVector (#192).

Changed

• Transfer-matrix construction moved into a new utility/transfer_matrix.jl (CFTTransferMatrix) and is shared by all CFT shapes (#187, #192).
• The loop-TNR run! signatures were simplified, and the docstrings now describe how TRG and loop-TNR rotate the lattice (#187).
• New dependencies: NonlinearSolve (#187) and TensorKitTensors (#189).
• README updates: the paper reference was added and the logo now follows GitHub's theme (#209, #213).
• CI: the format check is now safe for fork PRs, and actions/checkout was bumped to v7 (#201, #196).

Fixed

• Transfer-matrix diagonalisation now uses the correct scalar type for the starting guess (#203).
• Fixed the documentation build, which was failing on duplicate or incomplete bibtex entries (#202).

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see 18 files with indirect coverage changes

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