Update field note 14 for the afternoon's two submissions

[carlok]

#285 (Furstenberg separation, 12:00 UTC) and #292 (oriented binary Markov tree, 14:18 UTC).

• six → eight submissions; 59 → 61 modules;
• Furstenberg separation builds on the Furstenberg topology that matteodesimone submitted on 18 August through a different model family;
• the oriented Markov tree is entry A of the roadmap its own author refreshed hours earlier (docs: refresh contribution directions (adopts #287) #290), written before that refresh had merged. It records the orientation and deliberately claims nothing about numerical labels, which is where the Markov uniqueness conjecture sits.

A correction caught before publishing. My draft called #285 the first import edge crossing from one contributor's work to another's. I checked every edge: 22 of 39 already cross contributors. So the note now states that, and observes that cross-producer reuse — dropped from the pre-registration's secondary metrics in August because one producer made it undefined — has data after all.

Command behind the number: map each module to the author of its add commit, then compare source and target for all 39 internal edges.

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