Remove all Raft protocol code

Removed all Raft-related code as it was not working properly:
- Removed VSRaftProtocol.java implementation
- Removed all Raft test files
- Removed Raft example/demo files
- Removed Raft documentation
- Removed Raft simulation files (.dat)
- Removed Raft scripts
- Updated VSRegisteredEvents to remove Raft registration
- Updated SimulationBuilder to remove RAFT constant
- Updated SimulationFactory to remove Raft methods
- Updated SimulationBuilderTest to remove Raft tests
- Updated pom.xml to remove Raft test configurations

The protocol had issues with leader election not completing in GUI mode.

🤖 Generated with Claude Code
https://claude.ai/code

Co-Authored-By: Claude <noreply@anthropic.com>

1 files changed, 0 insertions, 115 deletions

diff --git a/docs/raft-simulation-status.md b/docs/raft-simulation-status.md
deleted file mode 100644
index 146c11c..0000000
--- a/docs/raft-simulation-status.md
+++ /dev/null
@@ -1,115 +0,0 @@
-# Raft Simulation Status Report
-
-## Completed Tasks
-
-### 1. Raft Protocol Documentation ✓
-- Created comprehensive documentation at `/docs/raft-consensus-protocol.md`
-- Includes detailed explanations of:
-  - Leader election process
-  - Log replication mechanism
-  - Safety properties
-  - ASCII diagrams for visualization
-  - Implementation notes for DS-Sim
-
-### 2. Raft Protocol Implementation ✓
-- Successfully implemented in `VSRaftProtocol.java`
-- Features include:
-  - Leader election with randomized timeouts
-  - Heartbeat mechanism
-  - Log replication
-  - Client request handling
-  - Crash recovery support
-
-### 3. Simulation Creation ✓
-- Created multiple simulation files:
-  - `saved-simulations/raft-working.dat` - Full working simulation
-  - `saved-simulations/raft-consensus.dat` - Basic consensus demo
-  - `saved-simulations/raft-simple.dat` - Simple example
-  - `saved-simulations/raft-verified.dat` - Verification attempt
-
-### 4. Example Programs ✓
-- `CreateWorkingRaftSimulation.java` - Creates a comprehensive Raft simulation
-- `CreateAndVerifyRaftSimulation.java` - Creates and attempts to verify
-- `CreateMinimalRaftSimulation.java` - Minimal test case
-- `TestRaftLoading.java` - Verifies Raft protocol registration
-
-## Current Issue
-
-### Protocol Deserialization Error
-When loading saved simulations, the following error occurs:
-```
-java.lang.NullPointerException: Cannot invoke "protocols.VSAbstractProtocol.deserialize()" 
-because "protocol" is null
-```
-
-### Root Cause Analysis
-1. The serialization process saves ALL protocols that have been instantiated on a process
-2. During deserialization, it tries to recreate these protocol instances
-3. Some protocols may not have been properly initialized or registered
-4. The error suggests that a protocol classname is null or empty during deserialization
-
-### Workaround
-Despite the deserialization error, the simulation files are created successfully and contain:
-- 5 processes (3 servers, 2 clients)
-- Raft protocol activations scheduled at appropriate times
-- Crash/recovery events for testing fault tolerance
-
-## How to Use the Raft Simulation
-
-1. **Run the simulator GUI:**
-   ```bash
-   java -jar target/ds-sim-1.0.1-SNAPSHOT.jar
-   ```
-
-2. **Load the simulation:**
-   - File → Open → `saved-simulations/raft-working.dat`
-   - Note: You may see deserialization warnings, but the simulation should still load
-
-3. **Run the simulation:**
-   - Click the Run (▶) button
-   - Watch for:
-     - Leader election messages (REQUEST_VOTE, VOTE_RESPONSE)
-     - Heartbeats from the leader (APPEND_ENTRIES)
-     - Client requests and responses
-     - Re-election when servers crash
-
-## Testing Framework
-
-### Attempted Approaches
-1. **GUI Testing Framework** - Created test classes to verify simulation behavior
-2. **Integration Tests** - Direct testing without GUI
-3. **Verification Programs** - Standalone verification utilities
-
-### Current Status
-The testing frameworks encounter compilation issues due to:
-- Private field access requirements
-- Missing or changed API methods
-- Type compatibility issues
-
-## Recommendations
-
-1. **For immediate use:** The created simulations should work when loaded in the GUI despite the warnings
-2. **For fixing deserialization:** Investigate why some protocols have null classnames during save/load
-3. **For testing:** Consider using the GUI directly to verify behavior rather than automated tests
-
-## Files Created
-
-### Documentation
-- `/docs/raft-consensus-protocol.md` - Complete Raft protocol documentation
-- `/docs/raft-simulation-status.md` - This status report
-- `/saved-simulations/README-raft.txt` - User instructions
-
-### Source Code
-- `/src/main/java/examples/CreateWorkingRaftSimulation.java`
-- `/src/main/java/examples/CreateAndVerifyRaftSimulation.java`
-- `/src/main/java/examples/CreateMinimalRaftSimulation.java`
-- `/src/main/java/examples/TestRaftLoading.java`
-
-### Simulation Files
-- `/saved-simulations/raft-working.dat`
-- `/saved-simulations/raft-consensus.dat`
-- `/saved-simulations/raft-simple.dat`
-- `/saved-simulations/raft-verified.dat`
-
-### Test Files
-- `/src/test/java/simulator/SimpleRaftGUITest.java`
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