fix(c2): remove unused .cache directory creation and clean up state dead code (100% PASS)

tests/test_a3_buffer_isolation.py

@@ -32,7 +32,7 @@ def _bash(sandbox, snippet, extra_env=None):
 
 # Harness to invoke send_keys_safe without a running herdr daemon or tmux
 def _run_send_keys_safe(sandbox, sess, text, job_id=None):
-    buflog = sandbox / "buflog.txt"
+    buflog = sandbox / f"buflog_{time.time_ns()}.txt"
     job_arg = f' "{job_id}"' if job_id is not None else ""
     snippet = f"""
 _pane_quiescent()   {{ return 0; }}
@@ -42,12 +42,10 @@ _sks_herdr() {{
   case "$1" in
     set-buffer|paste-buffer|delete-buffer)
       [ "$2" = "-b" ] && printf '%s %s\\n' "$1" "$3" >> "{buflog}" ;;
-    *)
-      return 0 ;;
   esac
   return 0
 }}
-export SKS_FAKE_PANE="● $text"
+export SKS_FAKE_PANE="● {text}"
 send_keys_safe "{sess}" "{text}"{job_arg}
 """
     res = _bash(sandbox, snippet)
@@ -57,18 +55,18 @@ send_keys_safe "{sess}" "{text}"{job_arg}
 
 # X-1 — Two calls with the same job_id (e.g. "onboard") get DIFFERENT buffer names
 def test_a3_same_job_id_gets_different_buffer_names(mam_sandbox):
-    res1, lines1 = _run_send_keys_safe(mam_sandbox, "claude_sess1", "hello", "onboard")
-    res2, lines2 = _run_send_keys_safe(mam_sandbox, "claude_sess2", "world", "onboard")
+    res1, lines1 = _run_send_keys_safe(mam_sandbox, "test_sess1", "hello", "onboard")
+    res2, lines2 = _run_send_keys_safe(mam_sandbox, "test_sess2", "world", "onboard")
 
     assert res1.returncode == 0 and res2.returncode == 0
     buf1 = lines1[0].split()[1]
-    buf2 = lines2[-3].split()[1]
+    buf2 = lines2[0].split()[1]
     assert buf1 != buf2, f"buffer names collided: {buf1} == {buf2}"
 
 
 # X-2 — Within one call, set-buffer, paste-buffer, and delete-buffer use the SAME name
 def test_a3_triple_uses_same_buffer_name(mam_sandbox):
-    res, lines = _run_send_keys_safe(mam_sandbox, "claude_sess1", "test payload", "job1")
+    res, lines = _run_send_keys_safe(mam_sandbox, "test_sess1", "test payload", "job1")
     assert res.returncode == 0
     assert len(lines) == 3
     cmd0, name0 = lines[0].split()