fix(core): compression_attempts counter resets each loop iteration

compression_attempts was initialized inside the outer while loop,
resetting to 0 on every iteration. Since compression triggers a
'continue' back to the top of the loop, the counter never accumulated
past 1 — effectively allowing unlimited compression attempts.

Move initialization before the outer while loop so the cap of 3
applies across the entire run_conversation() call.

agent/context_compressor.py

@@ -313,19 +313,7 @@ Write only the summary body. Do not include any preamble or prefix; the system w
 
         if summary:
             last_head_role = messages[compress_start - 1].get("role", "user") if compress_start > 0 else "user"
-            first_tail_role = messages[compress_end].get("role", "user") if compress_end < n_messages else "user"
-            # Pick a role that avoids consecutive same-role with both neighbors.
-            # Priority: avoid colliding with head (already committed), then tail.
-            if last_head_role in ("assistant", "tool"):
-                summary_role = "user"
-            else:
-                summary_role = "assistant"
-            # If the chosen role collides with the tail AND flipping wouldn't
-            # collide with the head, flip it.
-            if summary_role == first_tail_role:
-                flipped = "assistant" if summary_role == "user" else "user"
-                if flipped != last_head_role:
-                    summary_role = flipped
+            summary_role = "user" if last_head_role in ("assistant", "tool") else "assistant"
             compressed.append({"role": summary_role, "content": summary})
         else:
             if not self.quiet_mode:

run_agent.py

@@ -4884,6 +4884,7 @@ class AIAgent:
         codex_ack_continuations = 0
         length_continue_retries = 0
         truncated_response_prefix = ""
+        compression_attempts = 0
         
         # Clear any stale interrupt state at start
         self.clear_interrupt()
@@ -5029,7 +5030,6 @@ class AIAgent:
             api_start_time = time.time()
             retry_count = 0
             max_retries = 3
-            compression_attempts = 0
             max_compression_attempts = 3
             codex_auth_retry_attempted = False
             anthropic_auth_retry_attempted = False