fix: add proxy configuration selector

[nbmaiti]

Description

Improves proxy configuration selector UX by converting from autocomplete input to mat-select dropdown component.

Changes

• UI: Replace autocomplete input with mat-select dropdown for cleaner proxy selection
• Method: Updated selectProxyProfile() to accept string parameter from mat-select selectionChange event
• Reset: Use .reset() instead of .patchValue('') for proper form control clearing
• Data Source: Use direct ProxyConfigurations() array instead of filtered async observable
• Tests: Updated all test cases to work with string parameters and new reset behavior

Why

• Better UX: dropdown vs free-text input for predefined options
• Cleaner API: direct string parameter instead of event object wrapping
• Proper form handling: .reset() clears both value and validation state

Testing

• ✅ Unit tests updated and passing
• ✅ Linting: all files pass ESLint
• ✅ Formatting: prettier compliant

Files Changed

• profile-detail.component.html (19 insertions, 45 deletions)
• profile-detail.component.ts
• profile-detail.component.spec.ts

[Copilot]

Copilot review overview

🟡 Changes recommended

The dropdown does not reset correctly and can hide existing proxy associations.

Review effort: Balanced
Findings: 2 · 3

Open (5)

• Show associated proxies when available configurations are missing · New
• Bind proxy select to reset its value after selection · New
• Add regression test for resetting and reselecting proxies · New
• The component now accepts a string in selectProxyProfile (used by the new <mat-select>), but…
• selectProxyProfile still clears proxyAutocomplete, but the template no longer binds…

[Copilot]

Copilot review overview

🟢 Approval recommended

The functional regression is covered; only minor obsolete autocomplete cleanup remains.

Review effort: Balanced
Findings: 3

Open (3)

• Remove obsolete proxy autocomplete code and stale tests · New
• The component now accepts a string in selectProxyProfile (used by the new <mat-select>), but…
• selectProxyProfile still clears proxyAutocomplete, but the template no longer binds…

Resolved since last review (3)

• Bind proxy select to reset its value after selection
• Show associated proxies when available configurations are missing
• Add regression test for resetting and reselecting proxies

[Copilot]

Copilot review overview

🟡 Changes recommended

Duplicate selection can leave the dropdown stuck and prevent re-adding a removed proxy.

Review effort: Balanced
Findings: 1 · 2

Open (3)

• Reset mat-select after selecting an already-associated proxy · New
• The component now accepts a string in selectProxyProfile (used by the new <mat-select>), but…
• selectProxyProfile still clears proxyAutocomplete, but the template no longer binds…

Resolved since last review (1)

• Remove obsolete proxy autocomplete code and stale tests