feat(telegram): wire replyToMode config, add forum topic support, fix messaging tool duplicates

Changes:
- Default replyToMode from "off" to "first" for better threading UX
- Add messageThreadId and replyToMessageId params for forum topic support
- Add messaging tool duplicate detection to suppress redundant block replies
- Add sendMessage action to telegram tool schema
- Add @grammyjs/types devDependency for proper TypeScript typing
- Remove @ts-nocheck and fix all type errors in send.ts
- Add comprehensive docs/telegram.md documentation
- Add PR-326-REVIEW.md with John Carmack-level code review

Test coverage:
- normalizeTextForComparison: 5 cases
- isMessagingToolDuplicate: 7 cases
- sendMessageTelegram thread params: 5 cases
- handleTelegramAction sendMessage: 4 cases
- Forum topic isolation: 4 cases

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

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

src/auto-reply/reply/agent-runner.ts

@@ -319,7 +319,8 @@ export async function runReplyAgent(params: {
                       text: cleaned,
                       mediaUrls: payload.mediaUrls,
                       mediaUrl: payload.mediaUrls?.[0],
-                      replyToId: tagResult.replyToId,
+                      // Default to incoming message ID for threading support (replyToMode: "first"|"all")
+                      replyToId: tagResult.replyToId ?? sessionCtx.MessageSid,
                     };
                     const payloadKey = buildPayloadKey(blockPayload);
                     if (
@@ -501,7 +502,8 @@ export async function runReplyAgent(params: {
         return {
           ...payload,
           text: cleaned ? cleaned : undefined,
-          replyToId: replyToId ?? payload.replyToId,
+          // Default to incoming message ID for threading support (replyToMode: "first"|"all")
+          replyToId: replyToId ?? payload.replyToId ?? sessionCtx.MessageSid,
         };
       })
       .filter(
@@ -511,8 +513,14 @@ export async function runReplyAgent(params: {
           (payload.mediaUrls && payload.mediaUrls.length > 0),
       );
 
+    // Drop final payloads if:
+    // 1. Block streaming is enabled and we already streamed block replies, OR
+    // 2. A messaging tool (telegram, whatsapp, etc.) successfully sent the response.
+    //    The agent often generates confirmation text (e.g., "Respondi no Telegram!")
+    //    AFTER using the messaging tool - we must suppress this confirmation text.
     const shouldDropFinalPayloads =
-      blockStreamingEnabled && didStreamBlockReply;
+      (blockStreamingEnabled && didStreamBlockReply) ||
+      runResult.didSendViaMessagingTool === true;
     const filteredPayloads = shouldDropFinalPayloads
       ? []
       : blockStreamingEnabled