cleanup: remove clawd/openclaw references, fix permissions, add architecture docs

- Replace all ~/clawd and ~/.clawdbot paths with ~/echo-core equivalents
  in tools (git_commit, ralph_prd_generator, backup_config, lead-gen)
- Update personality files: TOOLS.md repo/paths, AGENTS.md security audit cmd
- Migrate HANDOFF.md architectural decisions to docs/architecture.md
- Tighten credentials/ dir to 700, add to .gitignore
- Add .claude/ and *.pid to .gitignore
- Various adapter, router, and session improvements from prior work

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

src/adapters/telegram_bot.py

@@ -331,14 +331,31 @@ async def handle_message(update: Update, context: ContextTypes.DEFAULT_TYPE) ->
     # Show typing indicator
     await context.bot.send_chat_action(chat_id=chat_id, action=ChatAction.TYPING)
 
+    # Track intermediate messages sent via callback
+    sent_count = 0
+    loop = asyncio.get_event_loop()
+
+    def on_text(text_block: str) -> None:
+        """Send intermediate Claude text blocks to the chat."""
+        nonlocal sent_count
+        chunks = split_message(text_block)
+        for chunk in chunks:
+            asyncio.run_coroutine_threadsafe(
+                context.bot.send_message(chat_id=chat_id, text=chunk), loop
+            )
+        sent_count += 1
+
     try:
         response, _is_cmd = await asyncio.to_thread(
-            route_message, str(chat_id), str(user_id), text
+            route_message, str(chat_id), str(user_id), text,
+            on_text=on_text,
         )
 
-        chunks = split_message(response)
-        for chunk in chunks:
-            await message.reply_text(chunk)
+        # Only send combined response if no intermediates were delivered
+        if sent_count == 0:
+            chunks = split_message(response)
+            for chunk in chunks:
+                await message.reply_text(chunk)
     except Exception:
         logger.exception("Error processing Telegram message from %s", user_id)
         await message.reply_text("Sorry, something went wrong processing your message.")