feat: flash cli polishing treatments

[KAJdev]

Completes AE-2050

Replaces rich tables, panels, and emoji-heavy formatting with a consistent, compact inline style matching flash deploy and flash build. Plus human-readable dates.

flash app delete now takes a positional argument (matching create/get) instead of requiring --app.

[Copilot]

Pull request overview

This PR standardizes the flash CLI’s output formatting to a compact inline style (reducing rich tables/panels) and introduces shared formatting helpers (status dots + human-readable datetimes). It also changes flash app delete to take the app name as a positional argument.

Changes:

• Replace table/panel-heavy CLI output across commands (app, env, undeploy, resource, preview, init) with a consistent inline format.
• Add cli.utils.formatting helpers (state_dot, format_datetime) and update commands to use them.
• Update unit tests to validate string output and adjust for the flash app delete <name> positional argument.

Reviewed changes

Copilot reviewed 17 out of 19 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
tests/unit/cli/utils/test_formatting.py	Adds tests for new datetime/status formatting helpers.
tests/unit/cli/utils/test_deployment.py	Updates call site for reconcile_and_provision_resources.
tests/unit/cli/test_undeploy.py	Updates assertions to match new undeploy messaging/status return shape.
tests/unit/cli/test_env.py	Updates tests to assert on printed text rather than Rich Table/Panel.
tests/unit/cli/test_apps.py	Updates tests for new inline output + positional arg for app delete.
tests/unit/cli/commands/test_resource.py	Renames tested render function and updates patch points.
tests/unit/cli/commands/test_init.py	Updates expected init status messaging.
src/runpod_flash/core/resources/serverless.py	Lowers an update log line from info to debug.
src/runpod_flash/cli/utils/formatting.py	Introduces state_dot + format_datetime.
src/runpod_flash/cli/utils/deployment.py	Docstring tweak related to show_progress.
src/runpod_flash/cli/commands/undeploy.py	Reworks list/undeploy output into compact inline style + summary helper.
src/runpod_flash/cli/commands/resource.py	Replaces table/panel report with inline Text renderable output.
src/runpod_flash/cli/commands/preview.py	Replaces preview table with inline container listing + simplified guidance.
src/runpod_flash/cli/commands/init.py	Replaces panels/tables with inline project structure + next steps.
src/runpod_flash/cli/commands/env.py	Replaces tables/panels with inline environment summaries + sections.
src/runpod_flash/cli/commands/build.py	Docstring updated to document verbose summary option.
src/runpod_flash/cli/commands/apps.py	Reworks app list/get/delete output and makes delete argument positional.
.gitignore	Ignores pytest-results.xml and coverage.xml.

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