chore: interface{}→any in conformance harness; ignore tracker CLI binary

[clintecker]

Small repo-hygiene follow-up to #455.

Changes

• cmd/tracker-conformance/main.go — modernize interface{} → the any alias, consistent with the chore: repo hygiene sweep — committed critique artifact, untracked clutter, .scratch gofmt violation, interface{} → any #455 sweep.
• .gitignore — exclude the compiled /cmd/tracker/tracker binary, matching the existing /cmd/trackerbot/trackerbot entry (the binary was showing up as untracked).

Verification

• go build ./cmd/tracker-conformance/ passes
• pre-commit hooks green (coverage, complexity, tests, lint, format)

🤖 Generated with Claude Code

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Summary by CodeRabbit

• Chores
  • Updated project ignore rules to exclude generated tracker executables.
  • Modernized internal JSON handling without changing user-visible behavior.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 827ac1b0-2eae-473d-95bd-73645f4e3583

📥 Commits

Reviewing files that changed from the base of the PR and between 57ce823 and 5058113.

📒 Files selected for processing (2)

• .gitignore
• cmd/tracker-conformance/main.go

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Walkthrough

The conformance CLI replaces interface{} JSON plumbing with Go’s any type across formatters, handlers, decoding, and output. .gitignore also excludes two command binaries.

Changes

Conformance CLI JSON types

Layer / File(s)	Summary
JSON payload type migration cmd/tracker-conformance/main.go	JSON maps, decoding targets, diagnostics, and writeJSON now use any-based types without changing control flow or output behavior.

Generated binary ignore rules

Layer / File(s)	Summary
Tracker binary ignore rules .gitignore	Adds ignore patterns for the trackerbot and tracker executables.

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested reviewers: harperreed

Poem

I’m a rabbit with a tidy JSON nest,
any hops in where old types rest.
Two little binaries vanish from sight,
Ignored by Git through the quiet night.
Carrots all round—the diff is light!

🚥 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 both changes: the any type refactor and ignoring the tracker CLI binary.
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 docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/conformance-any-gitignore

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