pgAdmin3 v2026.07.13

Added

• Native macOS build support: an OS-detecting top-level Makefile
  (make build / make run / make clean) and macos/build_app.sh, which
  assembles a real double-clickable pgAdmin III.app — bundled dependencies,
  a generated app icon, and ad-hoc code signing, with no DYLD_LIBRARY_PATH
  or machine-specific paths needed at runtime.
• run-macos.sh convenience launcher for a quick dev run without full .app
  bundling.
• AGENTS.md, documenting the macOS wxWidgets build setup and porting
  decisions for future contributors.

Fixed

• Fixed a crash opening the Options dialog on macOS, caused by an
  uninitialized wxMask attached to the object-tree color swatches
  (ctlTreeJSON::RefreshImageList).
• Fixed missing creation of the settings data directory on macOS/Windows on
  first run (previously only handled on Linux), which could prevent reading
  or writing pgadmin3opt.json.
• Fixed several wxWidgets 3.3 compatibility issues encountered while adding
  macOS support (mixed wide/narrow string literals in the HTML diff-report
  generator, wxTimerEvent construction, deprecated wxScopedPtr usage,
  custom AUI tab-art color handling, and a couple of dead/no-op API calls) —
  see AGENTS.md for details; these were guarded so the Windows/Linux build
  path is unaffected.