feat: add keypad and Moonraker URL prompts to installer

[sjordan0228]

Summary

• Adds "3x4 matrix keypad attached?" prompt to Optional Hardware section
• Adds "Klipper / Moonraker printer?" prompt with Moonraker URL (default http://localhost:7125)
• Writes keypad_on and moonraker_url to NVS partition
• Documents both keys in nvs_keys.csv

Companion to SpoolSense/spoolsense_scanner#46.

Test plan

• Run installer, verify keypad prompt appears after LED prompt
• Verify Moonraker URL prompt only appears if user says Yes to Klipper
• Verify NVS CSV includes keypad_on and moonraker_url values
• Config-only mode also includes the new prompts

Summary by CodeRabbit

• New Features

  • Added interactive setup prompts during installation for keypad configuration (3x4 matrix keypad)
  • Added optional Klipper/Moonraker printer integration setup

• Style

  • Configuration file formatting updates

[coderabbitai]

Warning

Ignoring CodeRabbit configuration file changes. For security, only the configuration from the base branch is applied for open source repositories.

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 9e0f00f1-2bc3-494c-9d34-2652785d111b

📥 Commits

Reviewing files that changed from the base of the PR and between 3b72b67 and de77428.

⛔ Files ignored due to path filters (1)

• nvs_keys.csv is excluded by !**/*.csv

📒 Files selected for processing (2)

• .coderabbit.yaml
• install.py

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📝 Walkthrough

Walkthrough

The PR updates the CodeRabbit configuration with reformatted instructions block indentation, and extends the installer script with interactive prompts for keypad hardware and optional Moonraker printer integration, storing these settings in the scanner configuration and NVS CSV output.

Changes

Cohort / File(s)	Summary
Configuration Formatting .coderabbit.yaml	Re-indented the reviews.instructions block with additional leading spaces; no content changes.
Installer Enhancements install.py	Added interactive prompts for keypad hardware (keypad_on), Klipper/Moonraker printer integration, and moonraker_url input with validation and default value. Extended returned configuration dict and NVS CSV generation to include new settings as u8 and string types respectively.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main changes: adding keypad and Moonraker URL prompts to the installer, which aligns with the core functionality additions in both files.
Description check	✅ Passed	The description covers all required template sections (Summary, Changes, How to Test/Checklist) with concrete details about the changes and test verification steps, though the summary could be more concise.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/keypad-moonraker

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[sjordan0228]

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