feat(byv): add the medumba dataset

[pythonbrad]

Related issues

• Add more datasets #35

Changes

• added the medumba dataset

Summary by CodeRabbit

• New Features
  • Added Medumba configuration with runtime settings and references to external data sources.
  • Added a Vietnamese translation dictionary with canonical mappings and alias variants.
  • Added new Vietnamese input method configurations for Telex and VNI, including detailed letter-to-diacritic conversion rules.
• Documentation
  • Updated the README to include the Vietnam input method section and configuration overview.

[coderabbitai]

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ee72e6f7-7c6d-44bf-924e-b1663a92a13b

📥 Commits

Reviewing files that changed from the base of the PR and between 7115bfe and ace4f1b.

📒 Files selected for processing (1)

• README.md

📝 Walkthrough

Walkthrough

Adds Vietnamese input method metadata, VNI and Telex mappings, Medumba dictionary data, runtime wiring, and README registration.

Changes

Vietnamese input method package

Layer / File(s)	Summary
Vietnamese input method configuration vie/vie.toml, vni/vni.toml	Defines Vietnamese input method metadata, runtime behavior, and references to the VNI and Telex configurations.
VNI and Telex character mappings vni/vni.toml, telex/telex.toml	Adds Vietnamese vowel and consonant mappings, diacritic combinations, and alternate VNI or Telex sequences.
Medumba dictionary and package configuration byv/dictionary.toml, byv/byv.toml, README.md	Adds dictionary metadata, canonical translations with aliases, Medumba runtime paths, and README registration for Vietnam.

Estimated code review effort: 4 (Complex) | ~45 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: adding the Medumba dataset under byv.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch patch_byv

---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@byv/dictionary.toml`:
- Line 673: Update the dictionary entry key to use “neu1” without the combining
grave, and change the value’s “nə̀̀” to the single-grave form “nə̀”; preserve
the rest of the entry unchanged.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: d3af40b4-eee4-499f-8b9d-aaa4ba2d40df

📥 Commits

Reviewing files that changed from the base of the PR and between 7584bc3 and 8513ed4.

📒 Files selected for processing (2)

• byv/byv.toml
• byv/dictionary.toml

[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@README.md`:
- Around line 41-43: Update the README language entry to register Medumba using
the byv identifier, replacing the Vietnam/vie label and link while preserving
the existing configuration description.

In `@telex/telex.toml`:
- Around line 72-227: Add the missing fully capitalized key variants across the
e, o, u, y, and i series in telex.toml: define ES/EF/ER/EX/EJ/EE, corresponding
O/U/Y/I variants, and all accented uppercase values matching the existing three
capitalization forms. Apply the same four-combination pattern already used by
the a-series, including compound tone keys where applicable.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: d47fe2fc-5ebb-4a79-b4f5-124b38fb8fee

📥 Commits

Reviewing files that changed from the base of the PR and between 8513ed4 and 2bb27af.

📒 Files selected for processing (5)

• README.md
• byv/dictionary.toml
• telex/telex.toml
• vie/vie.toml
• vni/vni.toml

🚧 Files skipped from review as they are similar to previous changes (1)

• byv/dictionary.toml