feat(cli): add progress spinners to build and list commands

[RithamSharma]

Title: feat(cli): add progress spinners to build and list commands

Description

This PR improves the UX of the CLI by adding visual feedback (spinners) for long-running operations.

Changes

• Added indicatif dependency to dora-cli.
• Added spinners to dora build (resolving, fetching git, building).
• Added spinners to dora list (fetching dataflows, fetching nodes).

Testing

• ran cargo build -p dora-cli ✅
• ran dora build dataflow.yaml and verified spinners appear.
• ran dora list and verified spinners appear.

[swar09]

The build should be very fast. Do we really need a progress bar for this?

also dep tree if we add indicatif (already bloated dep tree)
indicatif v0.18.4
├── console v0.16.2
│ ├── encode_unicode v1.0.0
│ ├── libc v0.2.182
│ ├── once_cell v1.21.3
│ ├── unicode-width v0.2.2
│ └── windows-sys v0.61.2
│ └── windows-link v0.2.1
├── portable-atomic v1.13.1
├── unicode-width v0.2.2
└── unit-prefix v0.5.2

The CLI worked fine before, and it will work the same after. Does value justify the dep weight ?

[RithamSharma]

The build should be very fast. Do we really need a progress bar for this?

also dep tree if we add indicatif (already bloated dep tree) indicatif v0.18.4 ├── console v0.16.2 │ ├── encode_unicode v1.0.0 │ ├── libc v0.2.182 │ ├── once_cell v1.21.3 │ ├── unicode-width v0.2.2 │ └── windows-sys v0.61.2 │ └── windows-link v0.2.1 ├── portable-atomic v1.13.1 ├── unicode-width v0.2.2 └── unit-prefix v0.5.2

The CLI worked fine before, and it will work the same after. Does value justify the dep weight ?

Thanks for the feedback! You're right that local builds are fast, but my main motivation was:

Network operations: dora list and dora build (fetching git repos) can hang on slower networks, leaving the user wondering if the CLI froze.
Distributed builds: When building on remote machines via coordinator, latency can be unpredictable.
UX Consistency: Providing visual feedback aligns with modern CLI tools (like cargo, docker, uv).
However, I agree indicatif is heavy. I can look for a lighter alternative or implement a simple spinner manually if you think that's better?