[LLM Tutorial] Restructure codes

[holgerroth]

Fixes # .

Description

Use consistent file names and code structure.

Types of changes

• Non-breaking change (fix or new feature that would not break existing functionality).
• Breaking change (fix or new feature that would cause existing functionality to change).
• New tests added to cover the changes.
• Quick tests passed locally by running ./runtest.sh.
• In-line docstrings updated.
• Documentation updated.

[greptile-apps]

Greptile Summary

• Standardized file naming across LLM tutorial modules (renamed *_job.py to job.py, src/hf_sft_peft_fl.py to client.py, removed src/ subdirectories)
• Updated all references in notebooks and shell scripts to use new standardized filenames

Confidence Score: 2/5

• This PR contains a critical import error that will cause runtime failures.
• The restructuring is systematic but 08.5_llm_streaming/job.py has incorrect imports referencing the old src/ directory that no longer exists, which will cause immediate import failures when executed.
• Pay close attention to examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.5_llm_streaming/job.py - the import paths must be fixed before merging.

Important Files Changed

Filename	Overview
examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.5_llm_streaming/job.py	Renamed from streaming_job.py to job.py but imports still reference old src/ directory structure causing import errors.

Sequence Diagram

sequenceDiagram
    participant User
    participant JobScript as "job.py"
    participant FedJob
    participant Server as "NVFlare Server"
    participant Client as "NVFlare Client"
    participant Trainer as "SFTTrainer"
    
    User->>JobScript: "Execute python job.py"
    JobScript->>FedJob: "Create FedJob with config"
    JobScript->>FedJob: "Add FedAvg controller"
    JobScript->>FedJob: "Add model persistor"
    JobScript->>FedJob: "Configure ScriptRunner for clients"
    JobScript->>FedJob: "Export and run simulator"
    
    FedJob->>Server: "Initialize server with controller"
    FedJob->>Client: "Initialize clients with client.py script"
    
    loop "For each federated round"
        Server->>Client: "Send global model"
        Client->>Trainer: "Load global model"
        Client->>Trainer: "Train on local data"
        Trainer-->>Client: "Return trained model"
        Client->>Server: "Send model updates"
        Server->>Server: "Aggregate updates (FedAvg)"
    end
    
    Server-->>User: "Training complete"

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Additional Comments (5)

1. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.4_llm_quantization/job.py, line 29 (link)

   logic: train_script references old path but file moved to hf_sft_peft_fl.py (no src/ prefix)

2. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.4_llm_quantization/job.py, line 77 (link)

   logic: File path references src/ directory but file moved to hf_sft_model.py in root

3. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.4_llm_quantization/job.py, line 79 (link)

   logic: Module path references src. prefix but files moved to root directory

4. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.5_llm_streaming/job.py, line 17-18 (link)

   logic: Imports reference src. module but files moved to root directory

5. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.4_llm_quantization/job.py, line 129 (link)

   syntax: 'Clinet IDs' is mis-spelled

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[holgerroth]

/build

[greptile-apps]

Additional Comments (2)

1. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.4_llm_quantization/job.py, line 77-79 (link)

   logic: src/ directory was removed but still referenced here, causing import failure

2. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.4_llm_quantization/job.py, line 135 (link)

   syntax: Help text says "default to 5" but default is 3

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[greptile-apps]

logic: train_script should be hf_sft_peft_fl.py not job.py (self-reference causes circular execution)

Suggested change

	train_script = "job.py"
	train_script = "hf_sft_peft_fl.py"

[greptile-apps]

Additional Comments (1)

1. examples/tutorials/self-paced-training/part-4_advanced_federated_learning/chapter-8_federated_LLM_training/08.5_llm_streaming/job.py, line 16-17 (link)

   logic: imports reference old src/ directory but files moved to current directory

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