chore: add missing entries to .gitignore

[poshboytl]

• Add 5 missing entries to .gitignore: ckbadger.toml, data/, dob_decode/, mise.toml, perf/
• These are local runtime artifacts and personal config that should not be tracked

[janx]

These files are created in repo because you didn't specify a workdir explicitly (with -C). It's better to use a different workdir than the repo dir.

[janx]

A second thought: adding these entries to .gitignore brings no hurts. @claude what do you think?

[claude]

Claude finished @janx's task in 50s —— View job

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Analysis

• Read .gitignore and PR changes
• Analyze whether the additions make sense

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I agree — adding these entries is harmless and actually a good idea. Here's my take on each:

Entry	Verdict	Reasoning
ckbadger.toml	✅ Add	Personal/local config, same class as .env (already ignored). Paths inside are machine-specific.
data/	✅ Add	RocksDB data — could be hundreds of GB of binary files. Accidentally committing this would be catastrophic. Deserves explicit protection.
dob_decode/	✅ Add	Runtime artifact, has no place in version control.
mise.toml	✅ Add	Developer toolchain config (personal). This project doesn't commit one, so ignoring local copies is correct.
perf/	✅ Add	Performance benchmark output. Should not be tracked.

The "use -C to specify workdir" advice is correct best practice, but these two approaches are complementary, not mutually exclusive. The .gitignore entries serve as a safety net for developers who:

• Don't know about the -C convention
• Run quick one-off commands from the repo root
• Have tooling that doesn't pass through the workdir flag

The cost is 11 lines in .gitignore. The benefit is preventing accidental commits of binary databases, personal configs, and large runtime artifacts. I'd reopen or re-apply this PR.

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