ADR: bilingual structure — EN canonical in adr/, KO mirror in adr-ko/

Establish English as the canonical ADR language with Korean translations
held in a parallel docs/adr-ko/ tree as derived artifacts (1:1 mirror).
Promotion from adr-proposed/ to adr/ now writes English to adr/ and the
Korean to adr-ko/; bidirectional sync rule documented in CLAUDE.md.

- Migrate 30 ADRs in docs/adr/: 28 Korean-only translated to English,
  2 bilingual pairs (ADR-0020, ADR-0023) consolidated (.en.md suffix
  dropped). ADR-0023 EN regenerated against KO source which had newer
  HW Realization Notes (D16-D23) section.
- docs/adr-history/ left frozen by design (transitional state).
- CLAUDE.md (Part 2): update ADR Lifecycle for 4-folder layout, mark
  docs/adr-ko/ as a Derived Artifact, add ADR Translation Discipline
  section covering bidirectional sync, conflict resolution (EN wins),
  and proposed-language freedom.
- tools/verify_adr_lang_pairs.py: new verification tool checking pair
  completeness, filename mirroring, ADR-ID match, Status byte-equality.
  Pre-commit hook intentionally not added; run on demand or in CI.
- tests/test_verify_adr_lang_pairs.py: 11 cases including CRLF/LF
  normalization, em-dash title separator, underscore-slug edge case.

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

docs/adr-ko/ADR-0006-dev-topology-compilation-distance-diagram.md

@@ -0,0 +1,130 @@
+# ADR-0006: Topology Compilation, Distance Extraction, and Automatic Diagram Generation
+
+## Status
+
+Accepted
+
+## Context
+
+The simulator compiles topology configuration (e.g., topology.yaml) into an explicit model graph,
+and computes routing and accumulated latency (distance).
+Diagrams should be generated from these authoritative artifacts to ensure consistency and avoid
+hand-maintained topology drawings.
+
+Additionally, for usability, diagrams should be emitted automatically into a stable location
+so that developers can preview them immediately in the repository.
+
+---
+
+## Decision
+
+### D1. Topology compilation is the single source of truth
+
+- topology.yaml (or equivalent config) is compiled into:
+  - an explicit system graph,
+  - node/link attributes,
+  - routing policies.
+This compiled graph is the authoritative representation of the system.
+
+### D2. Distance extraction during compilation
+
+- During or immediately after topology compilation, the simulator MUST compute distance metadata
+  (accumulated latency) consistent with ADR-0002.
+- Distance metadata MUST be sufficient to support distance-aware diagram layout as defined in ADR-0005.
+- Distributed fabric segments (e.g., NOC) MAY have distance_mm = 0 per ADR-0002 D4;
+  layout placement for such nodes uses explicit position metadata rather than distance buckets.
+
+### D3. Diagram generation is a derived artifact
+
+- Diagrams MUST be generated from:
+  - the compiled topology graph,
+  - extracted distance metadata,
+  - view/layout rules defined in ADR-0005.
+- Diagram generation MUST NOT require additional hand-written topology descriptions.
+
+### D4. Automatic diagram emission to the repository
+
+- As part of topology compilation, the implementation MUST produce the following diagrams by default:
+  - SIP-level diagram (representative, distance-aware)
+  - CUBE-level diagram (representative, distance-aware)
+  - PE-level diagram (representative, distance-aware)
+- The default output directory is:
+  - `docs/diagrams/`
+- The generator MUST overwrite/update only when the compiled topology (or diagram rules) changes.
+
+### D5. View-specific projection and layout
+
+For each view (SIP / CUBE / PE):
+
+- The generator MUST project the compiled graph into a reduced view graph:
+  - hide/collapse nodes according to ADR-0005,
+  - preserve connectivity semantics relevant to that view,
+  - compute distance buckets and assign layout layers deterministically.
+- CUBE-level projection MUST include:
+  - Router mesh (from cube_mesh.yaml), HBM_CTRL, shared SRAM, M_CPU, UCIe ports,
+    and PEs as opaque blocks.
+  - All paths (HBM, non-HBM, command) route through the same router mesh (ADR-0017).
+- Default anchors are implicit (ADR-0005) and MUST NOT require instance indices.
+
+### D6. Output formats and determinism
+
+- The generator MUST output at least one of:
+  - Mermaid (Markdown-native)
+  - Graphviz DOT (rank-based control)
+  - SVG (mm-accurate layout, no external dependencies)
+- SVG is preferred when mm-accurate position metadata is available from the compiled topology.
+- Output MUST be deterministic:
+  - same topology + same rules → identical diagram text
+- File naming MUST be deterministic and stable (see "Output Conventions").
+
+### D7. Performance and caching
+
+- Diagram generation MAY be lazy and/or cached, as long as the outputs in `docs/diagrams/`
+  remain consistent with the compiled topology.
+- The implementation SHOULD use a cache key based on:
+  - topology content hash,
+  - routing policy version,
+  - diagram rules version,
+  - view type (SIP/CUBE/PE).
+
+---
+
+## Output Conventions
+
+### Directory
+
+- `docs/diagrams/` is the canonical output directory for generated diagrams.
+
+### File names (recommended, deterministic)
+
+- `system_view.svg` / `system_view.mmd` / `system_view.dot`
+- `sip_view.svg` / `sip_view.mmd` / `sip_view.dot`
+- `cube_view.svg` / `cube_view.mmd` / `cube_view.dot`
+- `pe_view.svg` / `pe_view.mmd` / `pe_view.dot`
+
+Optionally, for multi-topology workflows:
+
+- `sip_view__{topology_id}.svg`
+- `cube_view__{topology_id}.svg`
+- `pe_view__{topology_id}.svg`
+
+### Repository policy
+
+- Generated diagram files MAY be committed to the repository to enable diff-based review.
+- If committed, they MUST be reproducible from topology compilation.
+
+---
+
+## Consequences
+
+- Diagrams are always consistent with simulator behavior.
+- Architectural changes automatically propagate to visualizations.
+- Diagram diffs become meaningful indicators of architectural change.
+
+---
+
+## Links
+
+- SPEC Section 4 (Output, Debuggability, and Diagrams)
+- ADR-0002 (Distance semantics)
+- ADR-0005 (Diagram views and layout rules)