chore(release): 1.0.6

Image annotations (draw mode): 8-tool palette (freehand, line, arrow,
rect, ellipse, highlighter, text, select) with styling controls, in-mode
undo/redo, editable-until-Done vector shapes baked as one undoable edit,
and unsaved-annotation prompts. Cuts the CHANGELOG section for 1.0.6.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

chore(release): 1.0.5

Enhancement dialog overhaul: live histogram with clipping readouts, Levels
tab (per-channel markers, Auto, eyedroppers), Curves tab (per-channel spline
editors with editable Equalize), and a hold-to-Compare button. Also cuts the
CHANGELOG sections for 1.0.4 and 1.0.5.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

chore(release): 1.0.4

Visual Schnauzer thumbnail browser (press `b`), slideshow/present mode,
multi-level undo/redo, per-format save options, and the Tk 9 trackpad-scroll
fix for the browser grid.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

chore(release): 1.0.3

Promote the [Unreleased] EXIF info/edit panel and the dialog-close focus
fix into 1.0.3. 1.0.2 is already published on PyPI (immutable), so this
work ships as 1.0.3.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

For 1.0.1 release

Bug-fix/hardening release over 1.0.0: transparency compositing for all
alpha modes, stale-selection crop fix, navigation/save/timer hardening,
panning of oversized zoomed images, relaxed Pillow floor (>=10.0), and
single-sourced version metadata.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

For 1.0.0 release