bug(deploy): preserve verify-skip vs selective-flash outcome in deploy response message

[zackees]

Summary

POST /api/deploy and fbuild deploy currently collapse multiple distinct ESP32 deploy outcomes into the same top-level message: deploy succeeded.

On a real ESP32-S3 (COM13), I reproduced all of these with the current main binary:

• baseline full flash
• verify-flash skip because the device already matched the requested image
• selective rewrite of only firmware.bin after changing sketch source while bootloader.bin and partitions.bin stayed byte-identical

In all three cases the top-level response message remained deploy succeeded, even though the daemon/deployer already knows the more specific outcome.

Repro

Hardware:

• Board: esp32-s3-devkitc-1
• Port: COM13
• USB mode: USB-Serial/JTAG
• esptool: v5.1.0

Fixture:

• tests/platform/esp32s3
• baseline image copied to a temp fixture and deployed with skip_build=true
• alternate image built from the same fixture after changing only the Serial.println(...) string in src/main.ino

HTTP request body used:

{
  project_dir: <fixture>,
  environment: esp32s3,
  port: COM13,
  skip_build: true,
  verbose: true,
  monitor_after: false,
  monitor_show_timestamp: true,
  qemu: false,
  qemu_timeout: 30,
  pio_env: {}
}

Observed responses:

1. When the board already matched the requested image, stdout contained three successful verify-flash digest checks and no write, but message was still deploy succeeded.
2. After building an alternate valid firmware where only firmware.bin changed, stdout showed a write only at 0x00010000, but message was still deploy succeeded.

Expected

The top-level response should preserve the real deploy outcome so callers can distinguish:

• skipped via verify-flash
• selective firmware-only rewrite
• full flash

Actual

message is always deploy succeeded, so CLI/API consumers have to parse stdout to know what happened.

Why this matters

This hides the behavior added in #67 from both humans and automation, even though the daemon already computes it.