Add noise-machine-ability community ability

community/noise-machine/README.md

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+# Noise Machine
+
+![Community](https://img.shields.io/badge/OpenHome-Community-orange?style=flat-square)
+![Author](https://img.shields.io/badge/Author-@yourusername-lightgrey?style=flat-square)
+
+## What It Does
+Plays relaxing ambient sounds (rain, ocean waves, cafe, white noise, etc.) for a user-selected duration. Users can stop playback anytime by saying “stop”.
+
+## Suggested Trigger Words
+- "noise machine"
+- "sound machine"
+- "sleep sounds"
+- "play rain"
+- "ocean waves"
+- "white noise"
+- "cafe sounds"
+- "forest birds"
+
+## Setup
+- **Audio files:** Upload the 15 MP3 files into the Ability workspace (same folder as `main.py`), with these exact names:
+  - `rain.mp3`
+  - `heavy_rain.mp3`
+  - `ocean_waves.mp3`
+  - `river_stream.mp3`
+  - `white_noise.mp3`
+  - `pink_noise.mp3`
+  - `brown_noise.mp3`
+  - `forest_birds.mp3`
+  - `crickets.mp3`
+  - `campfire.mp3`
+  - `wind.mp3`
+  - `thunder.mp3`
+  - `cafe.mp3`
+  - `fan.mp3`
+  - `waterfall.mp3`
+- **Trigger words:** Set your trigger phrases in the OpenHome editor (these should match what you want users to say out loud).
+- **No API keys required.**
+
+## How It Works
+1. The user launches the ability using a trigger phrase (e.g., “noise machine”).
+2. The ability asks what sound the user wants (or matches it if they already said one).
+3. The ability asks for a duration (e.g., “30 minutes”, “one hour”, “hour and a half”).
+4. It plays the selected sound in a loop until the timer ends or the user says “stop”.
+5. The ability exits cleanly back to normal OpenHome flow.
+
+## Example Conversation
+> **User:** "noise machine"  
+> **AI:** "Noise machine ready. Popular sounds are: Rain, Ocean waves, White noise, Campfire, Forest birds. What would you like to hear?"  
+> **User:** "cafe"  
+> **AI:** "How long should I play it? You can say 30 minutes or 1 hour."  
+> **User:** "one hour"  
+> **AI:** "Playing Cafe for 1 hour. Say stop anytime."  
+> **User:** "stop"  
+> **AI:** "Okay, stopped."

community/noise-machine/__init__.py

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+