fix(mobile): show missing Android symbol icons

[rynfar]

Several symbols already used by Pylon Mobile rendered no icon on Android because AppSymbol had no mapping. This adds only the current Pylon callers: SF Symbols text.alignleft, mic, circle, and exclamationmark.circle, plus Material names merge and smartphone. Existing iOS behavior and shared symbol types remain unchanged.

This is a partial adaptation of T3 #12316. Its Agent behavior settings row does not exist in Pylon; that row remains a separate product choice. The text.alignleft mapping fixes Pylon's current file views. The upstream broad symbol-map/type rewrite is not needed for these callers. Revisit the Agent behavior row if Pylon adds that setting.

Validation: mobile typecheck, focused lint and format check, and a static six-symbol mapping assertion. Android visual verification is unavailable because device_list reports no Android SDK or emulator on this host; no device rendering is claimed.

Model: GPT-6 Sol. Harness: Pylon.

[vercel]

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1 Skipped Deployment

Project	Deployment	Actions	Updated
pylon-marketing	Ignored	Preview	Sep 27, 2026 4:21am UTC

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	14.0 KiB	14.0 KiB	+7 B (+0.0%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.2 KiB	7.3 KiB	+6 B (+0.1%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.7 KiB	6.7 KiB	+1 B (+0.0%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	58.0 KiB	58.0 KiB	+44 B (+0.1%)	66.4 KiB	✅
Codex	Live turn messages	8	9	+1 (+12.5%)	21	✅
Claude	Total thread wire	14.0 KiB	14.0 KiB	−17 B (−0.1%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.3 KiB	7.3 KiB	−5 B (−0.1%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.8 KiB	6.7 KiB	−12 B (−0.2%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	58.9 KiB	58.9 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	9	9	0 (0.0%)	21	✅

Baseline: dd4e28b · PR result: 8941490 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 115.7 KiB
• Claude decoded thread snapshot: 116.4 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.