Fix test-homebrew.sh: uninstall before tap recreation

[Copilot]

The script fails when deepwork is already installed from local/deepwork-test tap because brew tap-new conflicts with existing installations from that tap.

Changes

• Move brew uninstall deepwork before tap operations (line 46, previously line 54)

Before:

brew untap "$TAP_NAME" 2>/dev/null || true
brew tap-new --no-git "$TAP_NAME"
# ... modify formula ...
brew uninstall deepwork 2>/dev/null || true  # Too late
brew install --verbose "$TAP_NAME/deepwork"

After:

brew uninstall deepwork 2>/dev/null || true  # Clean state first
brew untap "$TAP_NAME" 2>/dev/null || true
brew tap-new --no-git "$TAP_NAME"
# ... modify formula ...
brew install --verbose "$TAP_NAME/deepwork"

Ensures idempotent execution when run multiple times.

Original prompt

test-hombrew.sh should uninstall and untap before trying to tap and install . Currently this fails

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