Pushover Delivery Group Support

[caronc]

Description

Related issue (if applicable): #980

Added support for Pushover Delivery Groups

Checklist

• Documentation ticket created (if applicable): apprise-docs/26
• The change is tested and works locally.
• No commented-out code in this PR.
• No lint errors (use tox -e lint and optionally tox -e format).
• Test coverage added or updated (use tox -e qa).

Testing

Anyone can help test as follows:

# Create a virtual environment
python3 -m venv apprise

# Change into our new directory
cd apprise

# Activate our virtual environment
source bin/activate

# Install the branch
pip install git+https://github.com/caronc/apprise.git@980-pushover-delivery-groups

# If you have cloned the branch and have tox available to you:
tox -e apprise -- -t "Test Title" -b "Test Message" \
    'pover://credentials/#group/#group2'

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (2b47159) to head (7640814).

Additional details and impacted files

@@            Coverage Diff            @@
##            master     #1563   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          196       196           
  Lines        25829     25847   +18     
  Branches      4205      4210    +5     
=========================================
+ Hits         25829     25847   +18     

Files with missing lines	Coverage Δ
apprise/plugins/pushover.py	100.00% <100.00%> (ø)

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[Copilot]

Pull request overview

Adds support for Pushover “Delivery Groups” so Apprise users can target #groupKey in addition to (or alongside) device targets.

Changes:

• Added parsing/validation for group targets (prefixed with # / %23) and updated URL parsing to preserve literal # in the path.
• Updated notification sending to fan out as: one request for all devices (batched) plus one request per group key.
• Expanded the Pushover plugin test suite to include group URL parsing and edge cases.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
apprise/plugins/pushover.py	Adds group target support, adjusts URL parsing/serialization, and changes send() behavior to support per-group requests.
tests/test_plugin_pushover.py	Adds URL and edge-case coverage for group targets and updates assertions for new internal target tracking.

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