v0.13.0

What's Changed

• Fix frequency-view GLE/text export by @BenHuddart in #253
• Drop Auto X/Y toggles on interactive zoom/pan by @BenHuddart in #254
• Stabilise plot limits: recomputes never reframe, gestures lock the view by @BenHuddart in #255
• Real field-shift x-axes for the frequency view by @BenHuddart in #256
• Selection-scoped Compute FFT with propagated group inclusion by @BenHuddart in #257
• Calibrate FFT amplitudes to fractional asymmetry; optional unit-area p(B) view by @BenHuddart in #258
• Matched-filter detection fallback for the apodisation suggestion by @BenHuddart in #259
• Bump bundled gleplot to v1.6.1 for the unquoted-filename parser fix by @BenHuddart in #260

Full Changelog: v0.12.1...v0.13.0