Set AGENT_NAME_SPOKEN=Eva (example) and document name/phone behaviour

- .env.example: add AGENT_NAME_SPOKEN=Eva.
- CLAUDE.md: note the agent-name respelling (AVA -> Eva, "EE-vuh"), that the
  caller-ID is injected pre-spelled (model mangles raw digits), and that the
  phone is confirmed near the END of the call, not led with.

(.env itself is gitignored; AGENT_NAME_SPOKEN=Eva set there and live.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.env.example

@@ -55,5 +55,7 @@ KOKORO_MODEL_DIR=/home/tocmo0nlord/pipecat-run/models
 
 # ── Call behaviour ───────────────────────────────────────────────────────────
 AGENT_NAME=AVA
+# How the name is SPOKEN (TTS only; logs/Odoo keep AGENT_NAME). "Eva" -> "EE-vuh".
+AGENT_NAME_SPOKEN=Eva
 # Grace pause after the goodbye before the carrier leg is dropped (seconds).
 HANGUP_DELAY_SECS=4.0