fix(tauri): resolve "Command restart_core_process not found" stale ACL

[graycyrus]

Summary

• Add cargo:rerun-if-changed directives for permissions/ and capabilities/ directories in app/src-tauri/build.rs so Tauri regenerates ACL tables on incremental builds
• Add missing permission entries for register_dictation_hotkey and unregister_dictation_hotkey in allow-core-process.toml

Problem

Clicking "Restart & Refresh Permissions" on the onboarding Screen & Accessibility Permissions step showed Command restart_core_process not found even though the command was correctly registered in generate_handler!, had a permission TOML, and was referenced in capabilities.

Root cause: build.rs had no cargo:rerun-if-changed directives for the permissions/ or capabilities/ directories. When these files were added/changed, cargo's incremental builds skipped re-running tauri-build, embedding stale ACL tables that didn't include the new permission entries.

Changes

File	Change
app/src-tauri/build.rs	Add rerun-if-changed for permissions and capabilities dirs
app/src-tauri/permissions/allow-core-process.toml	Add register_dictation_hotkey and unregister_dictation_hotkey

Test plan

• Clean build (cargo clean + yarn tauri dev) — verify "Restart & Refresh Permissions" works on ScreenPermissionsStep
• Verify same button works in Settings > Accessibility panel
• Verify dictation hotkey registration doesn't error

Closes #270

Summary by CodeRabbit

• Bug Fixes

  • Resolved an issue where changes to permission and capability configurations weren't triggering proper build regeneration, preventing command registration tables from being updated correctly.

• New Features

  • Added support for dictation hotkey registration and unregistration commands.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1abd0681-a5ad-478b-8722-596fc9dc8bb1

📥 Commits

Reviewing files that changed from the base of the PR and between e941af1 and 1fa25fb.

⛔ Files ignored due to path filters (1)

• app/src-tauri/Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (3)

• .claude/memory.md
• app/src-tauri/build.rs
• app/src-tauri/permissions/allow-core-process.toml

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📝 Walkthrough

Walkthrough

This PR fixes a bug where the restart_core_process Tauri command was not found at runtime. The root cause was missing cargo:rerun-if-changed directives in the build script, preventing tauri-build from regenerating ACL tables when permission or capability files changed. The fix adds rebuild triggers and extends the allow-core-process permission scope.

Changes

Cohort / File(s)	Summary
Build Script Configuration app/src-tauri/build.rs	Added Cargo directives to emit rebuild triggers for permissions and capabilities directories, ensuring tauri-build re-runs and regenerates ACL tables when these files change.
Permission Declaration app/src-tauri/permissions/allow-core-process.toml	Expanded permission scope description and added register_dictation_hotkey and unregister_dictation_hotkey to the allowed commands list.
Documentation .claude/memory.md	Documented the bug fix addressing stale ACL compilation when permission/capability files change; removed duplicate build blocker section.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A carrot-sized fix for a puzzle unsolved,
Rebuild triggers added—cached stales dissolved!
Commands now found where permissions align,
The hotkeys hop freely, the ACL's divine! 🎯✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main fix: adding cargo:rerun-if-changed directives to resolve stale ACL tables causing the 'Command restart_core_process not found' error.
Linked Issues check	✅ Passed	The PR directly addresses all coding requirements from issue #270: adds cargo:rerun-if-changed directives for permission/capability compilation [#270], and extends allow-core-process.toml with dictation hotkey commands [#270].
Out of Scope Changes check	✅ Passed	All changes are directly scoped to issue #270: the build.rs modification ensures ACL regeneration, and the permission file updates support command registration as required.

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✨ 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 fix/restart-core-process-command-not-found

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