ADR housekeeping: category prefixes, lifecycle folders, retroactive 0034-0037

Filename + lifecycle:
- ADR rename to ADR-NNNN-<cat>-title.md with 8 3-letter category prefixes
  (dev / mem / lat / prog / algo / par / api / ver). Numbers stay immutable.
- ADR Lifecycle split into 3 folders, documented in CLAUDE.md Part 2:
  docs/adr/ (Accepted), docs/adr-proposed/ (Proposed/Stub/Draft),
  docs/adr-history/ (Superseded/Merged). Status field gains "Draft" for
  retroactive docs pending verification.

Merges (one ADR per topic, no change-history annotations):
- ADR-0017 absorbs ADR-0019 (Cube NOC + per-PE HBM connectivity, 10 D-items)
- ADR-0014 absorbs ADR-0021 (PE pipeline execution model, 8 D-items incl.
  TileToken self-routing and multi-op composite epilogue scope)
- ADR-0023 absorbs docs/ipcq-dma-codesign-hw.md as new "HW Realization
  Notes (Informative)" section (D16-D23 + Open HW Questions). codesign-hw.md
  deleted; ADR-0019/0021 moved to adr-history with one-line stub status

Retroactive documentation (G4 closures, code-verified):
- ADR-0037 forwarding component (TransitComponent: first-flit overhead,
  serial worker, path-based routing, single impl/multiple names)
- ADR-0036 IO_CPU component (target_start_ns global barrier stamping,
  per-cube fan-out, response aggregation)
- ADR-0035 M_CPU & M_CPU.DMA component (3 fan-out paths, DMA Resources,
  target_start_ns passthrough)
- ADR-0034 HBM controller internal design (per-PC state, address-based
  selection, flit-aware per-flit commit, async finalize, command-only
  fallback path)

Content updates:
- ADR-0010 expanded to full CLI surface (run/probe/web), retitled
  "Command Line Interface and Execution Semantics"
- ADR-0007 D2 rewritten to current state; ADR-0015 supersession notes pruned
- ADR-0005 wrapped in Decision header with D1-D5; ADR-0022 metadata
  block replaced with standard Status header
- ADR-0024 trimmed to rank=SIP launcher essentials (D1-D4);
  ADR-0027 cleaned of supersession history
- ADR-0033 D6 cleanup: address-based PC selection moved out of future-work
  (now documented in ADR-0034 D3); related D1/D3 wording realigned
- Cross-references back-filled in 5 ADRs (G3 gaps closed)

Onboarding docs split:
- docs/onboarding/ created
- moved: hw-architecture-overview.md, latency-model.md, di-presentation.md,
  ccl-author-guide{,.en}.md
- references updated in README, ADR-0023{,.en}, src/kernbench/ccl/__init__.py

Source / test / yaml: ADR-NNNN cross-references in docstrings and YAML
comments updated after the merges (ADR-0021->0014 D6, ADR-0019->0017 D8).
No behavior change.

Tooling:
- tools/verify_adr_lang_pairs.py + tests/test_verify_adr_lang_pairs.py
  (ADR EN/KO pair invariant checker)
- .claude/commands/report.md tracked (/report slash command)
- .gitignore: allow .claude/commands/*.md while keeping settings files ignored

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tools/verify_adr_lang_pairs.py

@@ -0,0 +1,144 @@
+"""Verify ADR language pair invariants.
+
+Policy (see CLAUDE.md Part 2 -> ADR Translation Discipline):
+  docs/adr/        : English canonical
+  docs/adr-ko/     : Korean translation (1:1 mirror)
+  docs/adr-history/: frozen, not checked (transitional)
+  docs/adr-proposed/: language-free, not checked
+
+Checks:
+  - every docs/adr/<X>.md has a matching docs/adr-ko/<X>.md
+  - every docs/adr-ko/<X>.md has a matching docs/adr/<X>.md (no orphans)
+  - title line `# ADR-NNNN:` of each pair matches the filename's NNNN
+  - `## Status` block content is byte-equal (after CRLF/LF normalization)
+    between EN and KO
+
+Exit code: 0 if all OK, 1 if any mismatch.
+"""
+
+from __future__ import annotations
+
+import argparse
+import re
+import sys
+from pathlib import Path
+
+ADR_FILENAME_RE = re.compile(r"^ADR-(\d{4})-[a-z0-9_-]+\.md$")
+TITLE_RE = re.compile(r"^# ADR-(\d{4}):")
+
+
+def _normalize(text: str) -> str:
+    return text.replace("\r\n", "\n").replace("\r", "\n")
+
+
+def find_adr_files(adr_dir: Path) -> dict[str, Path]:
+    if not adr_dir.is_dir():
+        return {}
+    return {
+        p.name: p
+        for p in sorted(adr_dir.iterdir())
+        if p.is_file() and ADR_FILENAME_RE.match(p.name)
+    }
+
+
+def extract_title_id(text: str) -> str | None:
+    lines = _normalize(text).splitlines()
+    if not lines:
+        return None
+    m = TITLE_RE.match(lines[0])
+    return m.group(1) if m else None
+
+
+def extract_status_block(text: str) -> str | None:
+    """Return content between `## Status` and the next `## ` heading, stripped.
+
+    Returns None if no `## Status` heading exists.
+    """
+    lines = _normalize(text).splitlines()
+    in_status = False
+    collected: list[str] = []
+    for line in lines:
+        if line.strip() == "## Status":
+            in_status = True
+            continue
+        if in_status and line.startswith("## "):
+            break
+        if in_status:
+            collected.append(line)
+    if not in_status:
+        return None
+    return "\n".join(collected).strip()
+
+
+def verify(root: Path) -> list[str]:
+    errors: list[str] = []
+    en_dir = root / "docs" / "adr"
+    ko_dir = root / "docs" / "adr-ko"
+
+    en_files = find_adr_files(en_dir)
+    ko_files = find_adr_files(ko_dir)
+
+    for name in en_files:
+        if name not in ko_files:
+            errors.append(f"missing KO translation: docs/adr-ko/{name}")
+    for name in ko_files:
+        if name not in en_files:
+            errors.append(f"orphan KO (no canonical EN): docs/adr-ko/{name}")
+
+    for name in sorted(en_files.keys() & ko_files.keys()):
+        m = ADR_FILENAME_RE.match(name)
+        assert m is not None
+        expected_id = m.group(1)
+
+        en_text = en_files[name].read_text(encoding="utf-8")
+        ko_text = ko_files[name].read_text(encoding="utf-8")
+
+        en_id = extract_title_id(en_text)
+        ko_id = extract_title_id(ko_text)
+        if en_id != expected_id:
+            errors.append(
+                f"{name}: EN title ADR-ID {en_id!r} != filename {expected_id!r}"
+            )
+        if ko_id != expected_id:
+            errors.append(
+                f"{name}: KO title ADR-ID {ko_id!r} != filename {expected_id!r}"
+            )
+
+        en_status = extract_status_block(en_text)
+        ko_status = extract_status_block(ko_text)
+        if en_status is None:
+            errors.append(f"{name}: EN missing `## Status` section")
+        if ko_status is None:
+            errors.append(f"{name}: KO missing `## Status` section")
+        if en_status is not None and ko_status is not None and en_status != ko_status:
+            errors.append(
+                f"{name}: Status block mismatch\n"
+                f"      EN: {en_status!r}\n"
+                f"      KO: {ko_status!r}"
+            )
+
+    return errors
+
+
+def main(argv: list[str] | None = None) -> int:
+    p = argparse.ArgumentParser(description=__doc__)
+    p.add_argument(
+        "--root",
+        type=Path,
+        default=Path.cwd(),
+        help="Repository root (default: cwd)",
+    )
+    args = p.parse_args(argv)
+
+    errors = verify(args.root)
+    if errors:
+        print("ADR language pair verification FAILED:")
+        for e in errors:
+            print(f"  - {e}")
+        return 1
+    print("ADR language pair verification OK")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())