fix: start disabled processes manually

[shivakumargn]

Summary

Fix manual start of processes configured with disabled: true.

StartProcess now runs an enabled copy of the selected process configuration.
The stored project configuration remains disabled, so the process is still
skipped during initial project startup.

This fixes the misleading lifecycle state where a manually started process
remained Disabled while waiting for dependencies. The TUI now shows Pending
until dependencies are ready, then Running.

Tests

• Added a regression test for Disabled → Pending → Running.
• The test also verifies that manual start does not mutate the stored
  disabled configuration.

Compatibility

The change is platform-independent and preserves existing startup behavior.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud