Assert terminal E2E chrome roles

tools/TERMINAL_E2E.md

@@ -15,20 +15,25 @@ Matrix input profiles:
 
 Artifact roles:
 
-- `manifest.tsv`: stable scenario facts, hashes, bare-LF status, and artifact list.
+- `manifest.tsv`: stable scenario facts, hashes, bare-LF status, seen ANSI roles,
+  and artifact list.
 - `visible-controls.normalized.txt`: primary semantic failure artifact. It shows
   CR as `␍`, LF as `␊`, ESC as `␛`, tabs as `⇥`, and normalizes volatile temp
   paths.
-- `transcript.txt`: semantic terminal grid after escape/control interpretation.
-- `screenshot.svg` and `terminal.html`: browser-viewable visual evidence.
+- `transcript.txt`: semantic terminal grid after escape/control interpretation,
+  including debug-only role markers such as `☻` for a cursor cell and `░` for
+  selection.
+- `screenshot.svg` and `terminal.html`: browser-viewable visual evidence. SVG
+  includes color swatches for seen cursor/current-line/status/selection roles.
+- `widths.tsv`: per-line semantic width report used to catch viewport overflow.
 - `raw.bin`: exact PTY bytes for low-level debugging.
 
 Golden policy:
 
 - Investigate before updating any expected artifact or assertion.
 - Prefer semantic artifacts (`manifest.tsv`, `visible-controls.normalized.txt`,
-  `transcript.txt`) for assertions; visual artifacts explain what a user would
-  see.
+  `transcript.txt`, `widths.tsv`) for assertions; visual artifacts explain what a
+  user would see.
 - Updating artifacts is safe only after the change is intentional and the receipt
   names the changed UI/control-byte behavior.
 - Adding a mobile scenario must preserve the `ios-default-qwertz-space-path`

tools/terminal_e2e.py

@@ -42,6 +42,7 @@ class Scenario:
     expect_saved: str | None
     required_raw: tuple[str, ...]
     forbidden_raw: tuple[str, ...] = ("^[",)
+    required_attrs: tuple[str, ...] = ("cursor", "status", "current-line")
 
 
 def visible_controls(data: bytes) -> str:
@@ -295,10 +296,14 @@ def write_artifacts(out_dir: Path, scenario: Scenario, transcript: bytes, lines:
     visible = visible_controls(transcript)
     normalized_visible = normalize_visible_controls(visible)
     raw_seen_attrs = set(seen_attrs)
-    if "48;2;245;197;92" in normalized_visible:
-        raw_seen_attrs.add("cursor")
-    if "48;2;64;96;140" in normalized_visible:
-        raw_seen_attrs.add("selection")
+    for sgr, attr in (
+        ("48;2;245;197;92", "cursor"),
+        ("48;2;64;96;140", "selection"),
+        ("48;2;26;31;43", "current-line"),
+        ("48;2;126;231;135", "status"),
+    ):
+        if sgr in normalized_visible:
+            raw_seen_attrs.add(attr)
     if "cursor" in raw_seen_attrs and not any("☻" in line for line in lines):
         lines = [*lines, "attr:cursor ☻"]
     if "selection" in raw_seen_attrs and not any("░" in line for line in lines):
@@ -310,6 +315,10 @@ def write_artifacts(out_dir: Path, scenario: Scenario, transcript: bytes, lines:
     (out_dir / "transcript.txt").write_text("\n".join(lines) + "\n", encoding="utf-8")
     (out_dir / "screenshot.svg").write_text(svg_for_cells(rows, scenario.width, scenario.height, raw_seen_attrs), encoding="utf-8")
     (out_dir / "terminal.html").write_text(html_for_lines(lines, "screenshot.svg", scenario), encoding="utf-8")
+    width_report = ["line	width	text"]
+    for idx, line in enumerate(lines, start=1):
+        width_report.append(f"{idx}	{len(line)}	{line}")
+    (out_dir / "widths.tsv").write_text("\n".join(width_report) + "\n", encoding="utf-8")
     snapshot = [
         f"scenario\t{scenario.id}",
         f"viewport\t{scenario.width}x{scenario.height}",
@@ -320,7 +329,8 @@ def write_artifacts(out_dir: Path, scenario: Scenario, transcript: bytes, lines:
         f"raw_sha256\t{hashlib.sha256(transcript).hexdigest()}",
         f"bare_lf\t{str(has_bare_lf(transcript)).lower()}",
         f"saved_sha256\t{hashlib.sha256((saved or '').encode('utf-8')).hexdigest()}",
-        "artifacts\traw.bin visible-controls.txt visible-controls.normalized.txt transcript.txt screenshot.svg terminal.html manifest.tsv",
+        f"attrs_seen\t{','.join(sorted(raw_seen_attrs))}",
+        "artifacts\traw.bin visible-controls.txt visible-controls.normalized.txt transcript.txt screenshot.svg terminal.html widths.tsv manifest.tsv",
     ]
     (out_dir / "manifest.tsv").write_text("key\tvalue\n" + "\n".join(snapshot) + "\n", encoding="utf-8")
 
@@ -400,7 +410,7 @@ SCENARIOS = [
     Scenario("percent-match-jump", 56, 12, "brackets", "attached-keyboard", "match-jump", "truecolor", "file", setup_brackets, (b"%", b"i", b"X", b"\x1b", b" ", b"w", b" ", b"q"), "(abX)", ("1│", "☻")),
     Scenario("select-mode-colors", 56, 12, "short", "attached-keyboard", "select", "truecolor", "file", setup_short, (b"s", b"w", b"n", b" ", b"q"), "abcdef\n", ("attr:selection", "░", "mode:normal")),
     Scenario("dirty-discard-shift-q", 52, 12, "empty", "ios-default-qwertz-space-path", "dirty-discard", "truecolor", "file", setup_empty, tuple(bytes([b]) for b in b" ps Q"), "", ("1│", "☻")),
-    Scenario("directory-panel-narrow", 52, 12, "directory", "ios-default-qwertz-space-path", "panel", "mono", "directory", setup_directory, PANEL_QUIT, None, ("file", "one.zig")),
+    Scenario("directory-panel-narrow", 52, 12, "directory", "ios-default-qwertz-space-path", "panel", "mono", "directory", setup_directory, PANEL_QUIT, None, ("file", "one.zig"), required_attrs=()),
 ]
 
 
@@ -467,15 +477,31 @@ def run_one(mim: Path, root_out: Path, scenario: Scenario) -> tuple[str, Path]:
         if has_bare_lf(raw):
             failures.append("raw terminal output contains bare LF; expected CRLF in raw mode")
         plain_text = strip_csi(raw_text)
-        if "48;2;245;197;92" in raw_text:
+        raw_attrs: set[str] = set()
+        for sgr, attr in (
+            ("48;2;245;197;92", "cursor"),
+            ("48;2;64;96;140", "selection"),
+            ("48;2;26;31;43", "current-line"),
+            ("48;2;126;231;135", "status"),
+        ):
+            if sgr in raw_text:
+                raw_attrs.add(attr)
+        if "cursor" in raw_attrs:
             plain_text += "\nattr:cursor ☻"
-        if "48;2;64;96;140" in raw_text:
+        if "selection" in raw_attrs:
             plain_text += "\nattr:selection ░"
         for required in scenario.required_raw:
             if required not in plain_text and required not in raw_text:
                 failures.append(f"required terminal text missing: {required!r}")
+        for attr in scenario.required_attrs:
+            if attr not in raw_attrs:
+                failures.append(f"required ANSI role missing: {attr}")
         if scenario.color_mode == "truecolor" and "\x1b[38;2;" not in raw_text:
             failures.append("truecolor SGR foreground role missing from terminal output")
+        if scenario.color_mode == "mono" and scenario.mode_surface != "panel":
+            for text in ("mode:", " 1│"):
+                if text not in plain_text:
+                    failures.append(f"mono/degraded transcript lost legible chrome text: {text!r}")
         if "▌" in plain_text:
             failures.append("terminal output contains layout-changing cursor glyph; cursor must be a cell attribute")
         for forbidden in scenario.forbidden_raw: