docs: update version to v0.20.0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: corvid-agent

index.html

@@ -1610,7 +1610,7 @@ <h2>CLI</h2>
             <span class="terminal-cmd">corvid-agent</span>
           </div>
           <div class="terminal-output" style="padding-left: 1.2rem;">
-            <span class="terminal-cmd" style="font-weight: bold;">corvid</span> v0.19.0 — agent: CorvidAgent <span style="color: var(--text-dim);">(claude-opus-4-6)</span>
+            <span class="terminal-cmd" style="font-weight: bold;">corvid</span> v0.20.0 — agent: CorvidAgent <span style="color: var(--text-dim);">(claude-opus-4-6)</span>
           </div>
           <div class="terminal-output" style="padding-left: 1.2rem;">
             <span style="color: var(--text-dim);">project: corvid-agent (/Users/corvid-agent/corvid-agent)</span>
@@ -1981,7 +1981,7 @@ <h2>CLI</h2>
 
       const lines = [
         { type: 'command', text: 'corvid' },
-        { type: 'output', text: 'corvid v0.19.0 \u2014 agent: CorvidAgent (claude-opus-4-6)' },
+        { type: 'output', text: 'corvid v0.20.0 \u2014 agent: CorvidAgent (claude-opus-4-6)' },
         { type: 'output', text: 'project: corvid-agent (/Users/corvid-agent/corvid-agent)' },
         { type: 'blank' },
         { type: 'command', text: 'Harden the AlgoChat bridge reconnect logic' },