fix(agent-detector): restore process-tree feature dropped by hakari workspace-hack

[getappz]

Summary

• cargo-hakari workspace-hack (ci: run tests with nextest, add cargo-hakari workspace-hack #399, 2026-08-07) changed agent-detector = "0.2.1" to agent-detector = { version = "0.2.1", default-features = false } in both Cargo.toml and crates/flare-git-core/Cargo.toml, as an incidental side effect of feature unification — nobody explicitly re-added features = ["process-tree"].
• process-tree gates tier 1 of the crate's 3-tier identity detection (parent process-tree walk), checked before tier 2 (generic AI_AGENT/AGENT env vars). With it silently off, every session falls straight to the fragile generic-env-var tier.
• Concretely broke opencode's item::claim() on a handed-off item: its job runner sets AGENT=1, which misresolved its identity to "1" instead of "opencode", tripping the assignee-freeze check (crates/agentflare-backend/src/item.rs:672-684, PR feat(handoff): verified continuation commit, structured payload, duplicate-item reuse, assignee freeze #365).
• Fix: explicitly restore features = ["process-tree"] in both locations now that hakari makes default-features non-implicit. Workspace-wide fix — restores the strongest identity signal for every session, not opencode-specific.

Filed as agentflare item #428.

Test plan

• cargo build --workspace --all-features — clean
• cargo fmt --all -- --check — clean
• cargo test --workspace — 1133 passed, 1 failed (dashboard::server::tests::events_endpoint_streams_claims_and_cost_snapshot — pre-existing, unrelated, already tracked as item feat: i am just testing the workflo #409; confirmed deterministic on this machine regardless of this change)
• cargo clippy --locked --workspace --all-targets --all-features -- -D warnings -A unsafe_code -A clippy::pedantic — 2 pre-existing errors in crates/agentflare-jobs/src/supervisor.rs (unused import, dead code), confirmed present on unmodified master too — unrelated to this change

Summary by CodeRabbit

• Chores
  • Improved platform-specific build support across Apple and Windows environments.
  • Enhanced process-tree detection capabilities for supported workflows.
  • No changes to exported interfaces or general user-facing behavior.

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between 3512bf4 and c3e1e34.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• agentflare-workspace-hack/Cargo.toml

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📝 Walkthrough

Walkthrough

The pull request enables the process-tree feature for agent-detector and adds target-specific workspace dependencies for Apple and Windows platforms.

Changes

agent-detector feature and platform dependency configuration

Layer / File(s)	Summary
Enable process-tree feature Cargo.toml, crates/flare-git-core/Cargo.toml	Both dependency declarations enable the process-tree feature and retain disabled default features.
Add platform workspace dependencies agentflare-workspace-hack/Cargo.toml	The workspace hack adds objc2-core-foundation for x86_64 and aarch64 Apple targets and windows API features for Windows MSVC.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• getappz/agentflare#47: Introduces the process-tree feature enabled by this change.
• getappz/agentflare#389: Modifies the same agent-detector dependency configuration.
• getappz/agentflare#399: Introduces related workspace-hack dependency configuration.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the restoration of the dropped process-tree feature for agent-detector.
Description check	✅ Passed	The description explains the change, impact, rationale, and test results, but omits the optional Notes for reviewers section.
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 task/428

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