Initial task file for issue #409 - Custom Commands support

Author: amitksingh1490

.task-409.md

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+# Task: Implement Support for Custom Commands (Issue #409)
+
+## Original Issue Details
+
+**Title:** Feature Request: Support for Custom Commands
+
+**Description:**
+Currently, Code-Forge supports built-in commands like `/new` and `/info`. This feature request proposes extending the command system to support a standardized format for custom commands that can trigger custom event handling.
+
+For example: `/dispatch-gh-issue Create an issue to update the version of tokio` would fire an event with name "gh-issue" and value "Create an issue to update the version of tokio", which could then trigger custom handling.
+
+## Implementation Plan
+
+I'll implement a feature that allows users to use custom commands with the format `/dispatch-event_name value`, which will trigger custom event handling. My implementation will:
+
+1. Extend the `Command` enum with a new `Dispatch` variant
+2. Add a new `dispatch` method to the API trait
+3. Update the command parser to recognize and properly handle dispatch commands
+4. Implement event validation to ensure names follow specified format
+5. Update the main UI to handle custom dispatch commands
+6. Add comprehensive test coverage
+
+## Requirements and Acceptance Criteria
+
+### Command Format
+- Format: `/dispatch-event_name value`
+- Event names must contain only alphanumeric characters, underscores, and hyphens
+- Values can be empty
+- Spaces in values will be preserved
+
+### API Changes
+- Add new `dispatch` method to the `API` trait
+- Implement proper error handling and validation
+
+### User Experience
+- Clear feedback on successful/failed dispatch
+- Proper error messages for invalid event names
+- Consistent behavior with other commands
+
+### Testing
+- Unit tests for command parsing
+- Unit tests for event name validation
+- Integration tests for the entire dispatch flow
+
+## Files to Modify
+
+1. `crates/forge_api/src/lib.rs` - Add dispatch method to API trait
+2. `crates/forge_api/src/api.rs` - Implement dispatch in ForgeAPI
+3. `crates/forge_main/src/model.rs` - Update Command enum and parsing
+4. `crates/forge_main/src/ui.rs` - Handle dispatch commands
+5. `crates/forge_domain/src/dispatch_event.rs` - Add event name validation
+
+## Implementation Progress
+
+- [ ] Add dispatch method to API trait
+- [ ] Implement dispatch method in ForgeAPI
+- [ ] Update Command enum with Dispatch variant
+- [ ] Add command parsing for dispatch commands
+- [ ] Add event name validation
+- [ ] Update UI to handle dispatch commands
+- [ ] Add tests for dispatch command functionality