Add new `src search-jobs` command with subcommands to manage search jobs:
- create: Create new search jobs with query validation
- get: Retrieve search job details by ID
- list: List search jobs with sorting and pagination
- cancel: Cancel running search jobs
- delete: Remove search jobs

The command provides functionality to:
- Format output using Go templates
- Sort and filter search jobs
- Track job status

search_jobs_logs:
Implement a new search-jobs subcommand to retrieve jobs logs from the configured Sourcegraph instance.

search_jobs_get.go:
Extract the GraphQL query logic for fetching a search job into a separate helper function to improve code organization and reusability. This change:

- Creates new getSearchJob helper function that encapsulates the GraphQL query logic
- Simplifies the main handler function by delegating job fetching
- Maintains existing functionality while improving code structure

Add new command to retrieve search job results in JSONL format with the following capabilities:
- Fetch results using search job ID
- Optional file output with -out flag

This commit introduces the `search-jobs restart` command, enabling users to restart a search job by its ID. The command retrieves the query from the original job and creates a new search job with the same query.

This commit refactors the search-jobs commands to:
- Implement a builder pattern for consistent command creation
- Add column-based output format with customizable columns
- Support JSON output format for programmatic access
- Improve argument handling by using positional arguments for IDs
- Separate command logic from presentation for better testability
- Extract common functionality into reusable helper functions
- Enhance usage documentation with better examples
- Remove SearchJobID parsing functions in favor of direct ID handling