feat: add ComfyUI-Manager v4 support and uv-compile unified dependency resolution

[ltdrdata]

Summary

ComfyUI-Manager v4 is now installed as a pip package (via `manager_requirements.txt`) rather than being git-cloned into `custom_nodes/`.

Requires: ComfyUI-Manager >= 4.1b8 (via `manager_requirements.txt` in ComfyUI)

Breaking Changes

• Remove `--manager-url` and `--manager-commit` options from `comfy install`.
  Manager v4 is installed as a pip package from `manager_requirements.txt`, not git-cloned. These flags controlled which git repo/commit to clone, so they no longer apply.
  • Migration path: Install with `--skip-manager`, then manually install a custom Manager wheel/editable package into the workspace venv:

    comfy install --skip-manager
    # Option A: install a custom fork in editable mode
    pip install -e /path/to/your-manager-fork
    # Option B: install a specific version from PyPI
    pip install comfyui-manager==4.1b8

  • Scripts or CI pipelines using these flags will get an "unknown option" error and must be updated.
• `validate_comfyui_manager()` now uses `find_cm_cli()` (module import check) instead of git path check (`custom_nodes/ComfyUI-Manager/.git`).

Manager Subcommand Changes

Command	Description
`comfy manager disable`	Disable manager completely (no flags passed)
`comfy manager enable-gui`	Enable manager with new GUI
`comfy manager disable-gui`	Enable manager but disable GUI only
`comfy manager enable-legacy-gui`	Enable manager with legacy GUI
`comfy manager migrate-legacy`	Migrate git-cloned manager to pip package
`comfy manager uv-compile-default`	Set default for --uv-compile flag

`--uv-compile` Unified Dependency Resolution

Adds `--uv-compile/--no-uv-compile` flag to 7 custom node commands for Manager v4.1+ unified dependency resolution via `uv pip compile`.

Commands with `--uv-compile`:
`install`, `reinstall`, `update`, `fix`, `restore-snapshot`, `restore-dependencies`, `install-deps`

Standalone command: `comfy node uv-sync` — batch-resolve all installed custom node dependencies.

Flag resolution priority: explicit flag -> config default (`comfy manager uv-compile-default`) -> disabled

Mutual exclusivity: `--uv-compile` cannot be used with `--fast-deps` or `--no-deps`.

Bug Fixes

• `find_cm_cli()` now checks workspace Python first (not CLI interpreter) — fixes false positive when comfy-cli is installed globally but cm_cli is only in workspace venv
• `migrate_legacy()` uses `resolve_workspace_python()` instead of `sys.executable` — installs into correct environment
• `_get_manager_flags()` logs warning for unknown manager mode values
• `execute_cm_cli()` captures stderr via PIPE with background drain thread — surfaces git_helper.py errors

Cache Management

`comfy node update-cache` — force-fetch remote data and populate local Manager cache (blocking).

E2E Test Infrastructure

• `MANAGER_OVERRIDE` env var: test Manager branches without PyPI publish
• `/test-manager` PR comment trigger workflow for on-demand Manager patch testing
• Windows file lock retry (`_rmtree_retry`) for `.git/objects/pack/*` cleanup between tests

Test plan

• 463 unit tests pass, 0 failures
• 18/18 E2E tests pass on all platforms (Ubuntu, macOS, Windows)
• Tested with Manager 4.1b8
• Rebased on latest `main`
• Windows git clone file lock issue resolved (ComfyUI-Manager 4.1b8 + `_rmtree_retry`)

Dependencies

This PR will work correctly once the following ComfyUI-side PR is merged, which updates `manager_requirements.txt` to require `comfyui-manager>=4.1b8`:

• ComfyUI PR: bump manager version to 4.1b8 ComfyUI#13108 (`manager_requirements.txt` update)
• ComfyUI-Manager: >= 4.1b8 (published on PyPI)

[codecov]

Codecov Report

❌ Patch coverage is 92.73356% with 21 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
comfy_cli/command/install.py	70.00%	12 Missing ⚠️
comfy_cli/command/custom_nodes/command.py	97.46%	4 Missing ⚠️
comfy_cli/command/custom_nodes/cm_cli_util.py	94.33%	3 Missing ⚠️
comfy_cli/workspace_manager.py	86.66%	2 Missing ⚠️

@@            Coverage Diff             @@
##             main     #363      +/-   ##
==========================================
+ Coverage   67.04%   70.94%   +3.90%     
==========================================
  Files          33       33              
  Lines        3711     3931     +220     
==========================================
+ Hits         2488     2789     +301     
+ Misses       1223     1142      -81     

Files with missing lines	Coverage Δ
comfy_cli/cmdline.py	58.00% <ø> (ø)
comfy_cli/command/launch.py	42.68% <100.00%> (+7.51%)	⬆️
comfy_cli/constants.py	100.00% <100.00%> (ø)
comfy_cli/workspace_manager.py	73.25% <86.66%> (+3.84%)	⬆️
comfy_cli/command/custom_nodes/cm_cli_util.py	95.41% <94.33%> (+4.78%)	⬆️
comfy_cli/command/custom_nodes/command.py	79.69% <97.46%> (+22.32%)	⬆️
comfy_cli/command/install.py	75.19% <70.00%> (+2.44%)	⬆️

... and 1 file with indirect coverage changes

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[bigcat88]

@ltdrdata hello! is this PR is ready to be reviewed? (sorry, I completely forgot about this PR)

[ltdrdata]

Oh… additional updates to support uv-compile are currently in progress. Since the changes are fairly extensive, I’m also validating them more thoroughly. Please wait a bit longer.

[ltdrdata]

For the E2E tests to function correctly, the update-cache feature introduced in 4.1b5 is required, so the following PR needs to be merged.

Comfy-Org/ComfyUI#12957

[bigcat88]

@ltdrdata can you rebase this PR on main branch?

[ltdrdata]

To resolve the E2E test failures in the Windows environment, it needs to be updated to manager v4.1b6.

Comfy-Org/ComfyUI#13022

[bigcat88]

🚀🚀🚀