Fix agent freeze logic and improve visual feedback

[Mundo-Dev0ps]

• Agents no longer freeze on STANDBY (CPU 1-15%); only IDLE + stale MCP halts movement
• Drop redundant gate inside Agent.update() so ACTIVE PIDs always proceed
• Clear path/decision on respawn to prevent stuck agents post-death
• Clear MOVE decision when path is empty so wander targets that go out of bounds reset cleanly
• MockBrain wanders randomly when map is quiet instead of WAIT lock
• Stop targeting safe-zone "+" cure tiles in observation/COLLECT (was infinite loop)
• Render bypass classes with blue pulse when flying over obstacles
• Show sub-agent badge "🧬N" in cluster panel; pulse parent aura while subs work
• Render agents/fairies above fog so they remain visible outside player vision
• Unify event log border color with map aura via shared pidColor()
• Inspect panel exposes state/pidState/MCP freshness/reasoning for diagnosis
• Add DEBUG_AGENTS env-var logger in Game.step() for offline triage
• Bump terminal size requirements to 113x35 minimum, 140x42 recommended
• Add docs/ (ARCHITECTURE, COMPATIBILITY, MCP, RELEASE, SETTINGS) and screenshots
• Replace ASCII banner with pixel-art hero image in README