chore: add Community Applications submission files

ca_profile.xml

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+<?xml version="1.0"?>
+<CommunityApplications>
+  <Profile>Only Fan Controller — intelligent, quiet fan control for Dell PowerEdge (iDRAC) servers, with optional NVIDIA GPU awareness and Home Assistant (MQTT) integration. Reads CPU temps over IPMI and GPU temps via nvidia-smi and drives the fans through the iDRAC, with a fail-safe hand-back to the BMC. Support is via GitHub Issues on the project repository.</Profile>
+  <Icon>https://raw.githubusercontent.com/sethpjohnson/only-fan-controller/main/icon.png</Icon>
+  <WebPage>https://github.com/sethpjohnson/only-fan-controller</WebPage>
+</CommunityApplications>

templates/only-fan-controller.xml

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+<?xml version="1.0"?>
+<Container version="2">
+  <Name>only-fan-controller</Name>
+  <Repository>ghcr.io/sethpjohnson/only-fan-controller:latest</Repository>
+  <Registry>https://ghcr.io/</Registry>
+  <Network>bridge</Network>
+  <MyIP/>
+  <Shell>sh</Shell>
+  <Privileged>false</Privileged>
+  <Support>https://github.com/sethpjohnson/only-fan-controller/issues</Support>
+  <Project>https://github.com/sethpjohnson/only-fan-controller</Project>
+  <Overview>Intelligent, quiet fan control for Dell PowerEdge (iDRAC) servers, with optional NVIDIA GPU awareness and Home Assistant integration. Reads CPU temperatures over IPMI and GPU temperatures via nvidia-smi, then drives the fans through the iDRAC's manual fan commands - quiet at idle, ramping under load, without the iDRAC's aggressive default curve. Fail-safe by design: if a sensor read or the process itself fails, fan control is handed back to the BMC so the server is never left uncooled.</Overview>
+  <Description>Threshold-based fan controller for Dell PowerEdge servers (built and tested on an R730).&#xD;&#xA;&#xD;&#xA;**Features**&#xD;&#xA;- Threshold control with hysteresis (no fan oscillation)&#xD;&#xA;- CPU temps via IPMI (ipmitool); optional per-card GPU temps via nvidia-smi&#xD;&#xA;- Fail-safe: sensor/process failure hands cooling back to the BMC's automatic control&#xD;&#xA;- Real-time web dashboard + JSON API&#xD;&#xA;- Optional Home Assistant integration over MQTT (auto-discovery: per-GPU temperature/utilization/power, fan-speed control, availability)&#xD;&#xA;&#xD;&#xA;**Requirements**&#xD;&#xA;- A Dell server with iDRAC reachable on the network (IPMI over LAN enabled). Fill in the iDRAC Host / Username / Password fields.&#xD;&#xA;&#xD;&#xA;**NVIDIA GPU (optional)**&#xD;&#xA;- To monitor GPU temps: set "Enable GPU Monitoring" = true AND add `--runtime=nvidia` to Extra Parameters (requires the Unraid NVIDIA Driver plugin). Leave both off on CPU-only systems.&#xD;&#xA;&#xD;&#xA;**Note**&#xD;&#xA;- While running, this puts the iDRAC in manual fan mode; see the project's README Safety section. Support via GitHub Issues.</Description>
+  <Category>Tools:Utilities</Category>
+  <WebUI>http://[IP]:[PORT:8086]/dashboard/</WebUI>
+  <TemplateURL>https://raw.githubusercontent.com/sethpjohnson/only-fan-controller/main/templates/only-fan-controller.xml</TemplateURL>
+  <Icon>https://raw.githubusercontent.com/sethpjohnson/only-fan-controller/main/icon.png</Icon>
+  <ExtraParams/>
+  <PostArgs/>
+  <CPUset/>
+  <DateInstalled/>
+  <DonateText/>
+  <DonateLink/>
+  <Requires/>
+  <Config Name="Web UI / API Port" Target="8086" Default="8086" Mode="tcp" Description="Dashboard and API port" Type="Port" Display="always" Required="true" Mask="false">8086</Config>
+  <Config Name="iDRAC Host" Target="IDRAC_HOST" Default="" Mode="" Description="iDRAC IP address (IPMI over LAN must be enabled)" Type="Variable" Display="always" Required="true" Mask="false"/>
+  <Config Name="iDRAC Username" Target="IDRAC_USERNAME" Default="root" Mode="" Description="iDRAC username" Type="Variable" Display="always" Required="true" Mask="false">root</Config>
+  <Config Name="iDRAC Password" Target="IDRAC_PASSWORD" Default="" Mode="" Description="iDRAC password" Type="Variable" Display="always" Required="true" Mask="true"/>
+  <Config Name="API Token" Target="API_TOKEN" Default="" Mode="" Description="Optional bearer token to change fans/hints via the HTTP API from other LAN hosts. Blank = local host only (does not affect Home Assistant/MQTT control)." Type="Variable" Display="always" Required="false" Mask="true"/>
+  <Config Name="Enable MQTT (Home Assistant)" Target="MQTT_ENABLED" Default="false" Mode="" Description="Enable the Home Assistant MQTT bridge (self-registers via MQTT Discovery)" Type="Variable" Display="always" Required="false" Mask="false">false</Config>
+  <Config Name="MQTT Broker" Target="MQTT_BROKER" Default="" Mode="" Description="MQTT broker. Just the IP works (e.g. 192.168.1.10); host:port or tcp://host:port also fine. Defaults to port 1883 (Mosquitto). This is the MQTT broker, NOT Home Assistant's web UI on 8123." Type="Variable" Display="always" Required="false" Mask="false"/>
+  <Config Name="MQTT Username" Target="MQTT_USERNAME" Default="" Mode="" Description="MQTT broker username (optional)" Type="Variable" Display="always" Required="false" Mask="false"/>
+  <Config Name="MQTT Password" Target="MQTT_PASSWORD" Default="" Mode="" Description="MQTT broker password (optional)" Type="Variable" Display="always" Required="false" Mask="true"/>
+  <Config Name="Enable GPU Monitoring" Target="GPU_ENABLED" Default="false" Mode="" Description="Monitor NVIDIA GPU temps. If you enable this, also add --runtime=nvidia to Extra Parameters (requires the Unraid NVIDIA Driver plugin). Leave off on CPU-only systems." Type="Variable" Display="always" Required="false" Mask="false">false</Config>
+  <Config Name="Idle Fan Speed %" Target="FAN_IDLE_SPEED" Default="20" Mode="" Description="Base fan speed when temps are below thresholds" Type="Variable" Display="always" Required="false" Mask="false">20</Config>
+  <Config Name="CPU Threshold C" Target="FAN_CPU_THRESHOLD" Default="65" Mode="" Description="Bump fans above this CPU temp. Keep below the 85C critical limit." Type="Variable" Display="always" Required="false" Mask="false">65</Config>
+  <Config Name="GPU Threshold C" Target="FAN_GPU_THRESHOLD" Default="60" Mode="" Description="Bump fans above this GPU temp. Keep below the 90C critical limit." Type="Variable" Display="always" Required="false" Mask="false">60</Config>
+  <Config Name="Fan Step Size %" Target="FAN_STEP_SIZE" Default="10" Mode="" Description="Fan increase per 5C over threshold" Type="Variable" Display="advanced" Required="false" Mask="false">10</Config>
+  <Config Name="Cooldown Delay s" Target="FAN_COOLDOWN_DELAY" Default="60" Mode="" Description="Seconds below threshold before ramping fans down" Type="Variable" Display="advanced" Required="false" Mask="false">60</Config>
+  <Config Name="Check Interval s" Target="CHECK_INTERVAL" Default="10" Mode="" Description="Seconds between temperature checks" Type="Variable" Display="advanced" Required="false" Mask="false">10</Config>
+  <Config Name="Data Directory" Target="/var/lib/only-fan-controller" Default="/mnt/user/appdata/only-fan-controller/data" Mode="rw" Description="History database storage" Type="Path" Display="advanced" Required="true" Mask="false">/mnt/user/appdata/only-fan-controller/data</Config>
+</Container>