fix: add meta-aware git help

[mateodelnorte]

Summary

• add meta-aware help for pass-through commands like meta git pull --help, fetch, and checkout
• keep worktree and snapshot child help command-specific
• add meta git worktree create --dry-run planning output for custom worktree operations

Verification

• cargo fmt --all
• cargo test -q --workspace
• cargo build --workspace --quiet
• bats tests/help.bats

Implements [[tasks/harmony-677]]

Summary by CodeRabbit

• New Features

  • Added --dry-run flag to the worktree create command for previewing planned operations without executing them.
  • Enhanced help text handling for snapshot and passthrough git commands.

• Chores

  • Updated CI and automation workflows to reference new organization configuration.

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 92931969-7e45-426d-8fd5-5490f5cff6f4

📥 Commits

Reviewing files that changed from the base of the PR and between bd152df and 5f2223b.

📒 Files selected for processing (1)

• src/commands/worktree/create.rs

Walkthrough

This PR introduces three independent changes: a GitHub organization migration from harmony-labs to gitkb in CI workflows, a new --dry-run flag for the worktree create command that previews operations without execution, and enhanced help routing for snapshot and pass-through git commands.

Changes

Organization Migration to gitkb

Layer / File(s)	Summary
Workflow organization references .github/workflows/auto-format.yml, .github/workflows/ci.yml, .github/workflows/notify-parent.yml	Updated all git clone URLs and workspace metadata repository fields to use gitkb GitHub org instead of harmony-labs across auto-format, CI test/clippy jobs, and parent dispatch configuration.

Worktree Dry-Run and Help System

Layer / File(s)	Summary
Dry-run CLI definition and dispatcher src/commands/worktree/cli_types.rs, src/commands/worktree/mod.rs	Added dry_run: bool field to CreateArgs, extended execute_worktree_command signature to accept a dry_run parameter, implemented flag injection in the dispatcher when create subcommand is matched with dry_run=true, and updated worktree help text to document the new --dry-run option.
Dry-run execution and printing src/commands/worktree/create.rs, src/commands/worktree/exec.rs	Implemented early return logic in handle_create that previews planned worktree operations (start ref, PR source, ephemeral/TTL config, per-repo git worktree add commands) via new print_create_dry_run and shell_quote helpers; reordered from_pr resolution to occur after the dry-run check; ensured ephemeral exec explicitly sets dry_run: false.
Help detection and routing system src/lib.rs, src/snapshot.rs	Added has_help_token helper to detect --help/-h across command and args, created execute_snapshot_command_help to route snapshot subcommand-specific help, and implemented build_passthrough_git_help to synthesize help for non-meta git subcommands scoped to discovered project directories.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• gitkb/meta_git_cli#25: Modifies execute_worktree_command signature and injects a clap argument flag (--recursive) into the dispatcher, directly related to the dry-run dispatch and argument-injection pattern in this PR.

Poem

🐰 Hopping through repos with a dry-run so neat,
Preview your moves before they complete,
Help texts now shine with routes that flow,
From gitkb org, our migrations all glow! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'fix: add meta-aware git help' directly aligns with the primary objective of adding meta-aware help for pass-through commands like git pull, fetch, and checkout.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch tasks-harmony-677

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