docs: update README, wiki, changelog, and release notes for v0.1.5

[sickkick]

• Remove device tracker from all docs; add General/Enterprise options
• Document new sensors (enrollment token data, device trust), Clear app data button
• Document new services (list_policies, list_enrollment_tokens, delete_enrollment_token, get_operation, get_enterprise, patch_enterprise, create_web_token)
• Update create_enrollment_token and enrollment QR (policy_id, one_time_only, etc.)
• CHANGELOG 0.1.5: General/Enterprise options, new services, device tracker removal
• RELEASE_NOTES: add v0.1.5 block

Made-with: Cursor

Description

Brief description of the changes in this PR.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings or errors