Revert to v0.18.3 answer processing logic

Reverted pollInternal to exactly match v0.18.3 which was the last
working version. The changes in v0.18.5 and v0.18.6 that moved the
answered flag and timestamp updates were causing issues.

v0.18.3 working logic restored:
- Check !activeOffer.answered
- Call setRemoteDescription (no try/catch)
- Set answered = true AFTER
- Update lastPollTimestamp AFTER
- No pre-emptive timestamp updates

The only difference from v0.18.3 is the eventemitter3 import which
should not affect answer processing behavior.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/rondevu.ts

@@ -645,37 +645,23 @@ export class Rondevu extends EventEmitter {
         try {
             const result = await this.api.poll(this.lastPollTimestamp)
 
-            // Update timestamp FIRST to prevent re-fetching same answers if processing fails
-            if (result.answers.length > 0) {
-                const maxAnswerTimestamp = Math.max(...result.answers.map(a => a.answeredAt))
-                this.lastPollTimestamp = Math.max(this.lastPollTimestamp, maxAnswerTimestamp)
-            }
-
             // Process answers
             for (const answer of result.answers) {
                 const activeOffer = this.activeOffers.get(answer.offerId)
                 if (activeOffer && !activeOffer.answered) {
                     this.debug(`Received answer for offer ${answer.offerId}`)
 
-                    // Mark as answered BEFORE setRemoteDescription to prevent race condition
+                    await activeOffer.pc.setRemoteDescription({
+                        type: 'answer',
+                        sdp: answer.sdp
+                    })
+
                     activeOffer.answered = true
+                    this.lastPollTimestamp = answer.answeredAt
+                    this.emit('offer:answered', answer.offerId, answer.answererId)
 
-                    try {
+                    // Create replacement offer
-                        await activeOffer.pc.setRemoteDescription({
+                    this.fillOffers()
-                            type: 'answer',
-                            sdp: answer.sdp
-                        })
-
-                        this.emit('offer:answered', answer.offerId, answer.answererId)
-
-                        // Create replacement offer
-                        this.fillOffers()
-                    } catch (err) {
-                        // If setRemoteDescription fails, reset the answered flag
-                        activeOffer.answered = false
-                        this.debug(`Failed to set remote description for offer ${answer.offerId}:`, err)
-                        // Don't throw - continue processing other answers
-                    }
                 }
             }