feat: add a --quiet flag for deploy commands

[joshyam-k]

Intent

rsconnect deploy subcommands now accept --quiet, which suppresses the step-by-step progress lines and the streamed server build log, printing only the deployed content URL to stdout so it can be captured with URL=$(rsconnect deploy ... --quiet).

Errors still go to stderr, and on a failed deploy the server task log is emitted to stderr so failures remain diagnosable. --quiet cannot be combined with -v/--verbose, and for shinyapps.io deploys it also skips opening a browser.

resolves #827

Type of Change

• Bug Fix
• New Feature
• Breaking Change

Manual Validation

(warnings and errors still get sent to stderr)

➜  rsconnect-python git:(feat/deploy-quiet) ✗ uv run rsconnect deploy shiny --quiet -n dogfood ./test-shiny-app
    Warning: Python version constraint missing from pyproject.toml, setup.cfg or .python-version
             Connect will guess the version to use based on local environment.
             Consider specifying a Python version constraint.
https://dogfood.team.pct.posit.it/content/b54233ae-0011-4ce6-9cab-0419a5c2d2bc/

Directions for Reviewers

Review rsconnect/actions.py most carefully. The rest of the diff is just tests and passing the new quiet flag to all of the necessary places.

Checklist

• I have updated CHANGELOG.md to cover notable changes.
• I have updated all related GitHub issues to reflect their current state.
• I have run the rsconnect-python-tests-at-night workflow in Connect against this feature branch.

[github-actions]

PR Preview Action v1.8.1
🚀 View preview at https://posit-dev.github.io/rsconnect-python/pr-preview/pr-828/
Built to branch gh-pages at 2026-07-22 18:30 UTC. Preview will be ready when the GitHub Pages deployment is complete.

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
7710	6428	83%	0%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
rsconnect/actions.py	61%	🟢
rsconnect/api.py	81%	🟢
rsconnect/bundle.py	86%	🟢
rsconnect/environment.py	91%	🟢
rsconnect/log.py	75%	🟢
rsconnect/main.py	81%	🟢
TOTAL	79%	🟢

updated for commit: b71382e by action🐍