fix(issue-30-33): review 5ec8ef33 - a multi-line codex draft is not an empty box, blocked notices reach the loop while the job runs, and both clocks are labelled on every close path

- R1 (P1): without rules the input region runs from the last prompt line to
  the end of the pane; only a last line matching the adapter's footer pattern
  (codex: `  <model> · ~/<cwd> · …`) is dropped, so a draft on a second line
  keeps the nudge withheld.
- R2: while the synchronous submit runs, a relay thread finds the job it
  registers (same session, created since the submit) and prints its
  stalled:/stall_watch: notices; before, they appeared only after the job.
- R3: the broker-unavailable disk wait that runs into the deadline is the wall
  clock: wall_clock_timeout (caller rc stays 3).
- R4: a state_change_seq change seen right before the judgement restarts the
  idle window (decision 9: S seconds of continuous idle).

Regression tests are the reviewer's reproductions, each with its passing
twin; the wrapper-level #30 tests now use this environment's broker instead
of the #18 harness's public default.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.agents/skills/lib_py/agents/input_region.py

@@ -11,7 +11,10 @@ def extract_input_region(pane_text: str, agent_name: str) -> str:
       1. an `input_block_prefix` -> the last contiguous block of lines starting
          with it, prefix removed, cut at the first `input_stop_pattern` line;
       2. two or more `input_rule_pattern` rules -> the lines between the last two;
-      3. an `input_prompt` -> the last line starting with the prompt.
+      3. an `input_prompt` -> from the last line starting with the prompt to
+         the end of the pane, minus a last non-blank line matching
+         `input_stop_pattern` (the status footer). Every other line below the
+         prompt line is input: a multi-line draft is never cut to its first line.
 
     Then `input_frame_chars`, the prompt and the placeholder are stripped. There
     is no whole-pane fallback: a pane with none of these shapes has no input
@@ -49,9 +52,17 @@ def extract_input_region(pane_text: str, agent_name: str) -> str:
             region_lines = lines[rule_indices[-2] + 1:rule_indices[-1]]
 
     if region_lines is None:
-        starts = [line for line in lines if line.lstrip().startswith(prompt)]
-        # No input line at all: report the whole tail as "not empty" (unknown).
-        region_lines = starts[-1:] if starts else [pane_text or '?']
+        starts = [i for i, line in enumerate(lines) if line.lstrip().startswith(prompt)]
+        if starts:
+            region_lines = [line for line in lines[starts[-1]:]]
+            while region_lines and not region_lines[-1].strip():
+                region_lines.pop()
+            if (len(region_lines) > 1 and adapter.input_stop_pattern
+                    and re.search(adapter.input_stop_pattern, region_lines[-1])):
+                region_lines.pop()
+        else:
+            # No input line at all: report the whole tail as "not empty" (unknown).
+            region_lines = [pane_text or '?']
 
     frame = adapter.input_frame_chars
     if frame: