feat: add call-to-action sections for Stake.com, ChipaEditor, and Discord community

Author: theshadow76

_includes/affiliate-banner.html

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+<div class="affiliate-banner" style="background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); border: 1px solid #e94560; border-radius: 12px; padding: 20px 24px; margin: 24px 0; text-align: center; box-shadow: 0 4px 15px rgba(233, 69, 96, 0.2);">
+  <p style="margin: 0 0 8px 0; font-size: 1.1em; font-weight: 600; color: #e94560;">🎰 Ready to experience Stake.com?</p>
+  <p style="margin: 0 0 12px 0; color: #a8b2d1; font-size: 0.95em;">Create your account and start using StakeAPI with real data today.</p>
+  <a href="https://stake.com/?c=WY7953wQ" target="_blank" rel="noopener" style="display: inline-block; background: #e94560; color: #fff; padding: 10px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 1em; transition: background 0.2s;">Sign Up on Stake.com →</a>
+</div>

_includes/chipaeditor-cta.html

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+<div class="chipaeditor-cta" style="background: linear-gradient(135deg, #0d1117 0%, #161b22 50%, #1f2937 100%); border: 1px solid #f97316; border-radius: 12px; padding: 18px 24px; margin: 24px 0; text-align: center; box-shadow: 0 4px 15px rgba(249, 115, 22, 0.2);">
+  <p style="margin: 0 0 8px 0; font-size: 1.1em; font-weight: 600; color: #f97316;">✏️ Built with ChipaEditor</p>
+  <p style="margin: 0 0 12px 0; color: #a8b2d1; font-size: 0.95em;">ChipaEditor is the ultimate code editor built for speed, simplicity, and power. Try it free today.</p>
+  <a href="https://chipaeditor.com" target="_blank" rel="noopener" style="display: inline-block; background: #f97316; color: #fff; padding: 10px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 1em; transition: background 0.2s;">Try ChipaEditor Free →</a>
+</div>

_includes/discord-cta.html

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+<div class="discord-cta" style="background: linear-gradient(135deg, #1a1a2e 0%, #23272a 50%, #2c2f33 100%); border: 1px solid #5865F2; border-radius: 12px; padding: 18px 24px; margin: 24px 0; text-align: center; box-shadow: 0 4px 15px rgba(88, 101, 242, 0.2);">
+  <p style="margin: 0 0 8px 0; font-size: 1.1em; font-weight: 600; color: #5865F2;">💬 Join the StakeAPI Community on Discord</p>
+  <p style="margin: 0 0 12px 0; color: #a8b2d1; font-size: 0.95em;">Get help, share your projects, discuss strategies, and stay up to date with the latest StakeAPI news.</p>
+  <a href="https://discord.gg/PHHfh6UyCb" target="_blank" rel="noopener" style="display: inline-block; background: #5865F2; color: #fff; padding: 10px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 1em; transition: background 0.2s;">Join Our Discord Server →</a>
+</div>