ROOT CAUSE:
The bot would permanently softlock itself on UNKNOWN screens (like Trending Audio/Reels)
because 'is_trap' had NO time-decay, and UNKNOWN screen traps persisted forever.
Once 'press back' was trapped on an UNKNOWN screen, the bot was permanently blocked
from escaping any future UNKNOWN screen, causing endless restart loops.
FIXES:
1. Trap Time-Decay: 'is_trap' now forgives Qdrant-persisted traps older than 30 minutes.
This mirrors ContextMemory and prevents permanent dead-ends.
2. UNKNOWN Guard: 'learn_trap' now REFUSES to persist traps for UNKNOWN screens to Qdrant.
They only live in-memory to prevent breaking global navigation.
3. In-Memory Purge: 'force start instagram' now properly calls 'clear_traps()' to wipe
the planner's in-memory traps. Previously they survived restarts, immediately
re-trapping the bot.
Purged 6 ancient traps from Qdrant (one was 8 days old!).
TDD: 3 new tests, full suite 113/114 (1 infra flake)
Marc Mintel
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