docs: add Indonesian README translation

[DavidsonRafaelK]

Summary

Adds Bahasa Indonesia to the README localization set, following the existing Tier 1 pattern.

New: .github/readme/README.id.md — full Indonesian translation of README.md.

Updated: the language navigation row in the 7 existing READMEs (README.md and the 6 in .github/readme/), so every file lists all 8 languages in the same order. Indonesian is <strong> in README.id.md and a link everywhere else. +2/-1 lines per file, no other content touched.

Observable behavior before: the nav row showed 7 languages and there was no Indonesian README. After: 8 languages, and README.id.md renders with the same structure as the English original (identical HTML tag counts and blank-line layout, so the before/after comparison table renders the same way).

Following the precedent set by README.th.md, this is README-only. There is no INSTALL.id.md, so the install link points at ../../INSTALL.md and is marked (bahasa Inggris).

Translation decisions

Kept verbatim in English, because they are copy-paste payloads rather than prose:

• both fenced blocks — the install prompt and the four claude plugin … commands, bash comments included (byte-identical to README.md, verified with diff)
• /i-have-adhd, npm install jsonwebtoken@latest, src/auth.ts:42, npm test -- auth.spec.ts, verifyToken, jsonwebtoken, skills/i-have-adhd/SKILL.md, AGENTS.md, MIT
• the book title The Adult ADHD Tool Kit and both author names

Translated: the tagline, the before/after example prose, the 10 rule summaries, section headings, and the license badge alt text. The tagline keeps the "no diagnosis needed" framing — "Output yang ramah ADHD. Tanpa perlu diagnosis ADHD!" — so the README makes no medical claim.

Authorship and provenance — select exactly one

• Human-authored — substantive implementation and text were produced by a human.
• Autonomous agent-authored — an agent planned and produced most of the substantive change.
• Hybrid — a human and one or more agents both made substantive contributions.

Agent/tool and model/version: Claude Code 2.1.270, model Opus 5 (claude-opus-5).

Agent contribution: Surveyed the repository for existing Indonesian support (none found), proposed the Tier 1 scope, wrote the Indonesian translation, edited the 7 navigation rows, and ran the verification commands below.

Human verification: The submitting human set the scope and constraints (README-only, the exact file list, the rule that technical literals stay in English, no runtime or skill changes) and reviewed the change in the session. The human has not independently re-run the verification commands at the time of submission; the outputs below were produced by the agent and are reproduced verbatim.

Known limitations or uncertain results: The Indonesian text has not been reviewed by a second native speaker — a review pass from an Indonesian-speaking maintainer or contributor is welcome, particularly on the tagline and the "Apa yang dilakukannya" paragraph. The test suite has 5 pre-existing failures, detailed under Verification.

Labels

Target label: Target:Docs

Author label: Author:AI

Workflow labels: enhancement

Safety and side effects

• The change does not access or expose secrets, private files, or unrelated user/repository data.
• Scripts, hooks, workflows, and evals are bounded and do not create surprising or irreversible side effects.
• No destructive, privileged, production, externally visible, or persistent action occurs without explicit user intent and appropriate safeguards.
• Network access, third-party code, permissions, and provider costs are minimized and documented.
• Prompt text, examples, and fixtures contain no hidden instructions that weaken safety or expand agent authority.

Side effects, permissions, network access, and cost: None. Documentation only — no scripts, hooks, workflows, manifests, or eval code are touched, and no provider calls were made.

Compatibility

• This is not a breaking change.
• This is a breaking change; it was discussed, and migration/deprecation documentation is included below.
• Canonical and mirrored skill files are synchronized when applicable.
• Relevant platform manifests and installation documentation were reviewed.

skills/i-have-adhd/SKILL.md and its .cursor mirror are byte-for-byte untouched, so the cursor-skill in sync check is unaffected. No manifest, hook, extension, workflow, test, or eval file is modified — installation methods, invocation names, file locations, and opt-in behavior are all unchanged. .github/install/ is untouched, so tests/test_install_docs.py still sees the same set of guides.

Migration or rollback notes: None needed. Reverting the commit removes the new file and restores the previous 7-language navigation rows.

Verification

• python3 -m unittest discover -s tests -v — Ran 51 tests, FAILED (failures=5). The full suite does not pass. All 5 failures are in test_opencode_plugin.py and are pre-existing: the identical 5 failures reproduce on a clean tree at base commit 6f1f982, before any change in this PR. They are a macOS path-normalization mismatch (/var/folders/… vs /private/var/folders/…) in an area this PR does not touch, and are not addressed here to keep the change focused.
• tests/test_install_docs.py — passes. It globs .github/install/, which this PR does not modify.
• Relative link check across all 8 README files — 88 relative links resolved, 0 broken.
• Navigation shape check across all 8 README files — each has exactly 8 entries in the same order, exactly one <strong> (its own language), correct · separators, and a working link to README.id.md.
• Structure parity — diff of the fenced blocks against README.md reports identical; HTML tag counts and blank-line layout match the English original exactly.
• git diff --check — clean; no trailing whitespace, tabs, or CRLF in the new file.

Behavior evals: Not applicable. This is documentation only — no skill text, prompt text, hook, or runtime behavior changed, so there is nothing for a baseline/candidate comparison to measure.

Final accountability

• I reviewed the complete diff, removed unrelated generated changes, and take responsibility for the submitted content.
• All failed, skipped, or unrun checks are disclosed above.