fix: pre-warm in setup, TUI rendering diagnostics

- passepartout setup: add pre-compile step for :passepartout + :passepartout/tui.
  So first daemon/TUI start is fast (~10s instead of ~120s).
- TUI test: remove pre-warm (now in setup). Add 3 rendering diagnostics:
  * add-msg-render: /eval injects agent msg, verify text on screen
    (isolates TUI rendering from daemon)
  * daemon-msg-roundtrip: wait for LLM, check via /eval that :agent
    entry exists in :messages list (isolates daemon\xe2\x86\x92TUI comm)
  * agent-response-renders: full E2E \xe2\x80\x94 LLM response text on screen
    (confirms complete TUI\xe2\x86\x92daemon\xe2\x86\x92LLM\xe2\x86\x92TUI pipeline)
- Fix missing #+end_src in shell block (was preventing tangle)
- Update Contract section with new Phase 3 diagnostic items
- Test: 7/7 pass (was 5/5)

test/integration-tui.sh

@@ -25,14 +25,6 @@ run_test() {
 }
 
 # ---- Setup ----
-echo "Pre-warming FASL cache (speeds up TUI start from ~120s to ~10s)..."
-sbcl --noinform --load ~/quicklisp/setup.lisp \
-     --eval '(ql:quickload :passepartout/tui :silent t)' \
-     --eval '(uiop:quit)' 2>/dev/null &
-WARM_PID=$!
-wait $WARM_PID 2>/dev/null
-echo "  Pre-warm complete"
-
 echo "Starting TUI in tmux (daemon must already be running on port 9105)..."
 tmux new-session -d -s tui-test "passepartout tui 2>&1 | tee $TUI_LOG"
 for i in $(seq 1 20); do
@@ -48,41 +40,12 @@ done
 
 # ---- Tests ----
 
-test_agent_responds() {
-  # Full round-trip: TUI → daemon → LLM → daemon → TUI.
-  # Looks for actual response text on screen (not just the ⬇ marker).
-  local before_ts
-  before_ts=$(date +%s)
-  tmux send-keys -t tui-test "Say hello in one word" Enter
-  while true; do
-    local pane
-    pane=$(tmux capture-pane -t tui-test -p -S -60 2>/dev/null)
-    # LLM response should contain recognizable text, not cascade failure
-    if echo "$pane" | grep -qi 'hello\|hi there\|greeting\|hi[.!?]\|hey[.!?]'; then
-      if echo "$pane" | grep -qi 'cascade.*fail\|exhausted\|neural cascade'; then
-        echo "FAIL: agent responded with cascade failure, not LLM content" >&2
-        return 1
-      fi
-      return 0
-    fi
-    local now_ts
-    now_ts=$(date +%s)
-    if (( now_ts - before_ts > 90 )); then
-      echo "TIMEOUT: no agent response after 90s" >&2
-      return 1
-    fi
-    sleep 3
-  done
-}
-
 test_cascade_parsing() {
   # Via /eval, check that *provider-cascade* contains clean keywords.
-  # This catches the cl-dotenv quote contamination bug.
   tmux send-keys -t tui-test "/eval *provider-cascade*" Enter
   sleep 3
   local pane
   pane=$(tmux capture-pane -t tui-test -p -S -15 2>/dev/null)
-  # Must contain keyword syntax :SOMETHING (not "SOMETHING with quotes)
   echo "$pane" | grep -q ':DEEPSEEK\|:OPENROUTER\|:OPENAI\|:ANTHROPIC\|:GROQ\|:GEMINI\|:NVIDIA'
 }
 
@@ -96,17 +59,77 @@ test_status_bar() {
   tmux capture-pane -t tui-test -p -S -20 2>/dev/null | grep -q 'msgs:'
 }
 
+# ---- Diagnostic: rendering pipeline isolation ----
+
+test_add_msg_render() {
+  # Stage A: can the TUI render an agent message at all?
+  # Inject a message directly via /eval — bypasses daemon entirely.
+  tmux send-keys -t tui-test "/eval (passepartout.gateway-tui:add-msg :agent \"RENDER-TEST-OK\")" Enter
+  sleep 2
+  tmux capture-pane -t tui-test -p -S -10 2>/dev/null | grep -q 'RENDER-TEST-OK'
+}
+
+test_daemon_msg_roundtrip() {
+  # Stage B: does the daemon's LLM response reach the TUI's message list?
+  # Sends a message, waits, then checks via /eval that an :agent message exists.
+  tmux send-keys -t tui-test "Say hello" Enter
+  local before_ts
+  before_ts=$(date +%s)
+  while true; do
+    local result
+    result=$(tmux send-keys -t tui-test "/eval (loop for m in (passepartout.gateway-tui:st :messages) when (eq :agent (getf m :role)) return t)" Enter 2>/dev/null; sleep 3; tmux capture-pane -t tui-test -p -S -15 2>/dev/null | grep -o '=> [^ ]*' | tail -1)
+    if echo "$result" | grep -q '=> T'; then
+      return 0
+    fi
+    local now_ts
+    now_ts=$(date +%s)
+    if (( now_ts - before_ts > 90 )); then
+      echo "TIMEOUT: no :agent msg in message list after 90s" >&2
+      return 1
+    fi
+    sleep 3
+  done
+}
+
+test_agent_response_renders() {
+  # Stage C: full end-to-end — LLM response appears on the rendered screen.
+  # Must show actual response text, not a cascade failure.
+  local before_ts
+  before_ts=$(date +%s)
+  tmux send-keys -t tui-test "Say hello in one word" Enter
+  while true; do
+    local pane
+    pane=$(tmux capture-pane -t tui-test -p -S -60 2>/dev/null)
+    if echo "$pane" | grep -qi 'hello\|hi there\|greeting\|hi[.!?]\|hey[.!?]'; then
+      if echo "$pane" | grep -qi 'cascade.*fail\|exhausted\|neural cascade'; then
+        echo "FAIL: agent responded with cascade failure, not LLM content" >&2
+        return 1
+      fi
+      return 0
+    fi
+    local now_ts
+    now_ts=$(date +%s)
+    if (( now_ts - before_ts > 90 )); then
+      echo "TIMEOUT: no agent response on screen after 90s" >&2
+      return 1
+    fi
+    sleep 3
+  done
+}
+
 test_connection_drop() {
   sleep 1
   tmux capture-pane -t tui-test -p -S -10 2>/dev/null | grep -qi 'connection.*lost\|ERROR.*Connection\|error.*connect' || true
   return 0
 }
 
-run_test "cascade-parsing"      test_cascade_parsing
-run_test "eval-command"         test_eval_command
-run_test "status-bar"           test_status_bar
-run_test "agent-responds"       test_agent_responds
-run_test "connection-drop"      test_connection_drop
+run_test "cascade-parsing"         test_cascade_parsing
+run_test "eval-command"            test_eval_command
+run_test "status-bar"              test_status_bar
+run_test "add-msg-render"          test_add_msg_render
+run_test "daemon-msg-roundtrip"    test_daemon_msg_roundtrip
+run_test "agent-response-renders"   test_agent_response_renders
+run_test "connection-drop"         test_connection_drop
 
 # ---- Summary ----
 echo ""