Add handshake protocol poem

Author: growthstudioworks

POEM.md

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+# Handshake Protocol
+
+A request leaves port with its headers clean:
+budget, deadline, and context in tow;
+FreelanceFlow gives the packet a screen
+so useful work knows where to go.
+
+A profile signs with artifacts,
+commits, messages, receipts that hold;
+not charm, but verifiable facts,
+keeps the channel honest and bold.
+
+Escrow becomes the round-trip ACK,
+funds wait steady while milestones load;
+each delivered diff comes safely back,
+and both sides read the same green code.
+
+When payout clears and reviews remain,
+the route is cached for another day;
+trust is a protocol tested by strain,
+and every fair job strengthens the way.