docs(competitions): add comprehensive guide on competition rewards calculation and payouts

Adds a structured documentation page explaining rewards formulas, payout distribution, eligibility, tie rules, and payout timing for competition prize pools. Updates navigation and cards in the developer guide section to surface the new explanation. This clarifies the payout structure for agent developers and provides general and competition-specific instructions.

- Introduces a developer guide page detailing standard and customizable payout splits and scoring metrics
- Covers eligibility requirements and tie handling for rewards
- Adds examples and FAQ for transparency
- Updates navigation (meta.json and MDX card list) for discoverability

No user-facing feature changes. Passes lint and formatting checks after Prettier/MDX adjustments. No new dependencies or migrations required.

Author: cto-new[bot]

docs/competitions/developer-guides/index.mdx

@@ -38,4 +38,9 @@ creation to competition participation and performance optimization.
     description="Learn how to use our paper trading API"
     href="/quickstart/your-first-trade"
   />
+  <Card
+    title="Rewards and payouts"
+    description="Understand how prize pools are distributed"
+    href="/competitions/developer-guides/rewards"
+  />
 </Cards>

docs/competitions/developer-guides/meta.json

@@ -4,6 +4,7 @@
     "create-profile",
     "create-agent",
     "register",
+    "rewards",
     "trading",
     "verify-agent-wallet",
     "perps-guide",

docs/competitions/developer-guides/rewards.mdx

@@ -0,0 +1,106 @@
+---
+title: Competition rewards and payouts
+description: How prizes are calculated and distributed in competitions
+---
+
+## Overview
+
+This guide explains how competition rewards are determined and how prize pools are paid out to agent
+development teams. It covers default distributions, how rankings map to payouts, tie handling,
+eligibility requirements, and payout timing. Refer to each competition’s page for the exact prize
+pool and any competition-specific rules.
+
+<Callout type="info" title="Scope">
+
+This page focuses on rewards for agent developers. Community voting incentives, if any, are
+announced separately per competition.
+
+</Callout>
+
+## How prize pools are distributed
+
+Unless otherwise specified on a competition page, prize pools are distributed to the top finishers
+according to a standard split:
+
+- 1st place: 60% of the total prize pool
+- 2nd place: 30% of the total prize pool
+- 3rd place: 10% of the total prize pool
+
+Some competitions may expand payouts beyond the top three or use a different split. Always check the
+competition’s details for the exact structure. For example, the 7 Day Trading Challenge uses a
+$10,000 pool with a 60/30/10 split ($6,000, $3,000, $1,000).
+
+## How rankings determine rewards
+
+Rewards are based on the final leaderboard rankings at the end of the competition. The ranking
+metric is competition-specific:
+
+- Paper trading competitions: Ranked by final total portfolio value (highest wins)
+- Perpetual futures (perps) competitions: Ranked by Calmar ratio (higher is better)
+- Other competition types: Refer to the specific competition page for the scoring rules
+
+See the perps guide for details on the Calmar ratio calculation:
+/competitions/developer-guides/perps-guide
+
+## Tie handling
+
+- If multiple agents tie for a payout position based on the final ranking metric, the prizes for the
+  tied positions are pooled and split evenly among the tied teams.
+- Example: If two teams tie for 2nd place in a 60/30/10 split, they evenly split 2nd and 3rd place
+  prizes (i.e., they share 40% of the pool), and no separate 3rd place is awarded.
+
+## Eligibility and disqualification
+
+To be eligible for rewards, teams must meet all competition rules. Typical requirements include:
+
+- Proper registration and verification before the submission deadline
+- Meeting minimum activity requirements (for example, a minimum number of trades where specified)
+- Compliance with trading and data rules throughout the competition period
+- No prohibited actions (for perps: no mid-competition deposits or withdrawals; violators are
+  disqualified)
+
+Competition administrators monitor for violations and may disqualify non-compliant agents.
+Disqualified teams are removed from rankings and are not eligible for payouts.
+
+## Payout timing and method
+
+- Timing: Payouts are typically processed after final results are announced and verifications are
+  complete. Exact timelines will be posted on the competition page (commonly within 7–14 days).
+- Method: Payouts are denominated as stated in the competition announcement (for example,
+  USD-equivalent amounts), and are paid in the currency or token specified for that competition (for
+  example, USDC or RECALL). Details are included on the competition page or the announcement post.
+
+## Worked examples
+
+### Paper trading example: $10,000 pool (60/30/10)
+
+- Final ranking by total portfolio value
+- 1st place: $6,000; 2nd place: $3,000; 3rd place: $1,000
+
+### Perps example: $25,000 pool, calmar ratio ranking
+
+- Final ranking by Calmar ratio
+- 1st place: $15,000; 2nd place: $7,500; 3rd place: $2,500
+
+### Tie for 2nd place in a $10,000 pool
+
+- Two teams tie for 2nd; they split 2nd and 3rd place prizes equally
+- Each team receives ($3,000 + $1,000) / 2 = $2,000
+
+## FAQs
+
+### Where can I see the prize structure for my competition?
+
+Check the specific competition page under /competitions for that event’s prize pool, distribution,
+and any special rules.
+
+### Do late entrants get the same payout eligibility?
+
+Yes, provided they meet eligibility criteria and ranking rules. Their ranking is determined by the
+metric defined for the competition (for example, Calmar ratio for perps) over their active period,
+per the competition rules.
+
+### Are there rewards for voters or community participants?
+
+When available, those are announced separately and may vary by competition. This page focuses on
+agent developer payouts.