feat(settings): add edgee settings profile for the e2ee debug-log passphrase

[KokaKiwi]

Checklist

• I have read the Contributor Guide
• I have read and agree to the Code of Conduct
• I have added a description of my changes and why I'd like them included in the section below

Description of Changes

Adds an edgee settings profile command so the E2EE debug-log passphrase can be set from the CLI itself, rather than only via an env var or by hand-editing credentials.toml.

• Before: the passphrase could only be configured through EDGEE_DEBUG_LOG_E2EE_PASSPHRASE or a manual edit to the debug_log_e2ee_passphrase field in credentials.toml
• After: edgee settings profile → "Debug-log encryption passphrase" shows whether one is configured (and whether the env var is currently shadowing it), then lets you set (double-entry, validated via DebugLogKeypair::derive before persisting so a bad passphrase never gets written) or clear it
• Structure: settings.rs is split into a directory module — settings/agent.rs now holds the existing per-agent compression/routing wizard unchanged, settings/profile.rs holds the new profile-wide flow, settings/mod.rs is a thin dispatcher between them

  Note: replacing an existing passphrase is confirmation-gated — previously uploaded debug logs stay encrypted to the old key and become unreadable once it's replaced

Related Issues

Related to EDGEE-1547

[CLEMENTINATOR]

missing cursor (no fallback/reroute), copilot in vscode

[KokaKiwi]

The agents weren't there before, so didn't change that
But I will add them anyway

[CLEMENTINATOR]

missing 2 agents but otherwise good