OQFT v0.3.0

• Added oqft check for exhaustive, explicit and seeded sampled basis
  checks against the textbook QFT.
• Added text and CSV reports for squared error, threshold failures and
  estimated block values, plus recorded checker examples.

OQFT v0.2.0

• Added the ancilla-free optimistic QFT generator and OpenQASM 3 export
  with oqft gen --type oqft.
• Added optional OQFT statistics with --eps and recorded comparisons
  through 2,048 qubits.

OQFT v0.1.0

• Added the circuit model, statevector simulator and full-unitary builder.
• Added textbook and approximate QFT generation and OpenQASM 3 export
  through oqft gen.
• Added oqft stats to compare gate counts and depth, and recorded example
  outputs alongside the tests.