fix: make daemon-down socket check reactive via polling state

[kaeawc]

Summary

• Replace the one-off ObservationStreamClient.socketExists() call during composition with a polled mutableStateOf that updates every 2s while disconnected/connecting
• Ensures the UI properly transitions between "Device Disconnected" and "Restart MCP Daemon" when the daemon socket appears or disappears after the initial disconnect
• Polling is gated to only run when disconnected/connecting — no overhead during normal connected operation

Test Plan

• ./gradlew -p android :ide-plugin:build passes
• Connect device, disconnect, then kill daemon — verify "Restart MCP Daemon" button appears within ~2s
• While showing "Restart MCP Daemon", restart the daemon — verify button disappears within ~2s

Closes #1202

🤖 Generated with Claude Code

[github-actions]

MCP Benchmarks

Overall Status: ✅ PASSED
Status by Benchmark: Context Thresholds: ✅ | Tool Call Throughput: ✅ | Startup: ✅ | NPM Unpacked Size: ✅

Context Thresholds

Category	Actual	Threshold	Usage	Status
Tools	10,989	14,000	78%	✅
Resources	440	1,000	44%	✅
Resource Templates	1,563	2,000	78%	✅
Total	12,992	17,000	76%	✅

Overall Status: ✅ PASSED

Generated at 2026-02-09T04:02:27.704Z

Tool Call Throughput

Sample Size: 50 iterations per tool
Total Duration: 11.29s
Average Throughput: 31.01 ops/second

Fast Operations (<100ms)

Tool	P50	P95	Mean	Success	Status
listDevices	0.0ms	0.0ms	0.0ms	100%	✅
pressButton	0.1ms	0.2ms	0.1ms	100%	✅

Medium Operations (100ms-1s)

Tool	P50	P95	Mean	Success	Status
observe	22.5ms	35.8ms	24.3ms	100%	✅
tapOn	0.1ms	0.1ms	0.1ms	100%	✅
inputText	58.3ms	69.0ms	60.6ms	100%	✅

Slow Operations (1s+)

Tool	P50	P95	Mean	Success	Status
launchApp	15.9ms	25.8ms	16.4ms	100%	✅
installApp	0.0ms	0.1ms	0.0ms	100%	✅

Summary: 7/7 tools passed
Overall Status: ✅ PASSED

Generated at 2026-02-09T04:04:22.606Z

Startup Performance

MCP Server (stdio)

Mode	Ready	First Tool Call	Heap Used
cold	522.0ms	n/a	31.5MB
warm	518.0ms	n/a	33.6MB

Device discovery: skipped (not run)

Daemon

Mode	Spawn	Ready	Responsive	Heap Used
cold	3.0ms	522.0ms	648.0ms	36.6MB
warm	3.0ms	521.0ms	645.0ms	36.6MB

Overall Status: ✅ PASSED

Generated at 2026-02-09T04:03:30Z

NPM Unpacked Size

Metric	Actual	Threshold	Usage	Status
Unpacked Size	12.4MB	30.0MB	41%	✅

Package: @kaeawc/auto-mobile@0.0.10
Tarball Size: 2.7MB

Overall Status: ✅ PASSED

Generated at 2026-02-09T04:02:57.968Z