fix: demo sensor stream, lowercase app name

[ng]

Summary

• Simulated sensor stream for demo mode — piezo waveforms, capSense presence, bed temps, freezer health all animate on the Sensors tab without a real pod
• Timeline canvas below the pipeline DAG now renders demo frame dots
• App display name changed to lowercase "sleepypod" (was "Sleepypod")
• "Sleepypod Intelligence" label changed to "sleepypod"

Test plan

• Fresh install → Explore Demo → Sensors tab → verify waveforms animate, timeline shows dots, pipeline DAG pulses
• Verify app name under icon on home screen shows "sleepypod" (lowercase)
• Biometrics → sleep stages → verify "sleepypod" label (not "Sleepypod Intelligence")

Summary by CodeRabbit

• New Features

  • Added demo mode for sensor data streaming with simulated readings for testing and preview purposes.

• Style

  • Updated branding text in the sleep stages timeline view.

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 96877751-a535-4e0e-b78e-ede8b37488bd

📥 Commits

Reviewing files that changed from the base of the PR and between 36e01a0 and 9b05eb1.

📒 Files selected for processing (2)

• Sleepypod/Services/SensorStreamService.swift
• Sleepypod/SleepypodApp.swift

📝 Walkthrough

Walkthrough

Project configuration updated to Xcode 16.2 standards with revised build metadata. Demo mode functionality added to sensor stream service with periodic synthetic data generation. Minor UI text updates made to project strings.

Changes

Cohort / File(s)	Summary
Project Configuration Sleepypod.xcodeproj/project.pbxproj	Updated Xcode project format (objectVersion 77→63), adjusted file reference metadata (explicitFileType vs. lastKnownFileType), upgraded compatibility check (2600→2620), added asset/string catalog build settings, changed display name to lowercase.
Sensor Demo Mode Implementation Sleepypod/Services/SensorStreamService.swift	Added demo streaming capability with periodic async loop (500ms ticks) generating synthetic sensor data (FPS, capacitive sense, piezo waveforms, device status, health, bed temperature). Introduced demoTask, startDemoStream(), stopDemoStream(), and trackDemoFrame() for managing demo lifecycle and frame tracking.
UI & Documentation Updates Sleepypod/SleepypodApp.swift, Sleepypod/Views/Data/SleepStagesTimelineView.swift	Added explanatory comment documenting demo stream initialization flow; updated section header text from "Sleepypod Intelligence" to "sleepypod".

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• Real-time sensor visualization #17: Implements the initial SensorStreamService architecture that this PR extends with demo mode functionality.
• Schedule loading, clear, and Health screen overhaul #16: Modifies the Xcode project file structure similarly, including file reference and build setting adjustments.

Poem

🐰 Hop through the demo streams we go,
Synthetic sensors in a periodic flow,
With frames tracked neat and timings tight,
Sleepypod demos work just right! 💤✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 28.57% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main changes: implementing demo sensor stream functionality and updating branding to lowercase app name.

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

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/demo-sensor-stream-branding

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@Sleepypod/Services/SensorStreamService.swift`:
- Around line 112-119: The connect() method currently guards on isConnected
before checking demo mode, causing a race where an active real WebSocket won't
be torn down when switching to demo; update connect() to check
APIBackend.current.isDemo first and if demo mode is requested ensure any
existing real connection is stopped (call disconnect()) before invoking
startDemoStream(), otherwise proceed with the normal connection flow; reference
symbols: connect(), isConnected, APIBackend.current.isDemo, disconnect(),
startDemoStream().

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 4e61254c-fca0-4e9e-b3a2-4cfa64de4320

📥 Commits

Reviewing files that changed from the base of the PR and between 76e5ec3 and 36e01a0.

📒 Files selected for processing (4)

• Sleepypod.xcodeproj/project.pbxproj
• Sleepypod/Services/SensorStreamService.swift
• Sleepypod/SleepypodApp.swift
• Sleepypod/Views/Data/SleepStagesTimelineView.swift

[github-actions]

🎉 This PR is included in version 1.0.0 🎉

The release is available on GitHub release

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