Fix an issue where pgAdmin4 app on macOS cannot auto-update while run…

[anilsahoo20]

…ning on a read-only volume even if present in /Applications folder. #9402

Summary by CodeRabbit

• Chores
  • Updated macOS application category to "Developer Tools"
  • Prevented generation of build cache/bytecode so signed installers are cleaner
  • Adjusted server startup environment to avoid creating Python bytecode files during run-start

[coderabbitai]

Walkthrough

Removed a macOS quarantine flag and added an application category in the macOS Info.plist; prevented Python from writing .pyc files during build and runtime; added a purge of pycache and .pyc files before code signing.

Changes

Cohort / File(s)	Summary
macOS Info.plist pkg/mac/Info.plist.in	Deleted LSFileQuarantineEnabled (boolean). Added LSApplicationCategoryType = "public.app-category.developer-tools".
macOS build scripts pkg/mac/build-functions.sh	In _create_python_env export PYTHONDONTWRITEBYTECODE=1. In _codesign_binaries add purge step to remove __pycache__ directories and *.pyc files and a log message before code signing.
Runtime startup runtime/src/js/pgadmin.js	In startDesktopMode set environment variable PYTHONDONTWRITEBYTECODE = '1' before starting the server.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Title check	❓ Inconclusive	The title is truncated and does not fully convey the PR's main objective of fixing auto-update issues on read-only volumes.	Provide the complete PR title. The truncated version prevents accurate assessment of whether it properly summarizes the complete fix being implemented.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@pkg/mac/build-functions.sh`:
- Around line 129-130: Move the export of PYTHONDONTWRITEBYTECODE into the start
of the _create_python_env() function so it is set before any Python commands run
(including ensurepip and pip install); locate the _create_python_env() function
and place the export PYTHONDONTWRITEBYTECODE=1 as the first statement in that
function to prevent generation of __pycache__/.pyc during those steps.