fix(integrations): dispatch bob commands via bob run

[temp-droid]

Description

Fixes #4491.

BobIntegration never overrode build_exec_args(), so it inherited the
IntegrationBase no-op returning None. Every workflow command:/prompt:
step targeting Bob failed with "CLI not found or not installed" even with bob
on PATH. Bob Shell has a headless entry point (bob run), so this dispatches
through it.

Also overrides build_command_invocation(), which was inherited from
IntegrationBase with a hardcoded . and rendered /speckit.specify where
skills-mode projects install .bob/skills/speckit-specify/. The class already
computes the right separator in effective_invoke_separator().

requires_cli stays False — dispatch is opt-in by overriding the method,
mirroring CursorAgentIntegration. Same fix shape as #2631.

Testing

• Tested locally with uv run specify --help
• Ran existing tests with uv sync && uv run pytest
• Tested with a sample project (if applicable)

Added 6 tests to tests/integrations/test_integration_bob.py (62 pass in that
file); tests/test_agent_config_consistency.py passes.

Verified end-to-end against Bob Shell 2.0.1: a workspace skill at
.bob/skills/speckit-marker/ was reached through
dispatch_command → build_exec_args → bob run, returning status: success
with one UseSkillTool call.

Note: the full suite shows 11 failures in the bash/Python parity tests. They are
identical on main without this change — 11 failed / 7702 passed on main,
11 failed / 7708 passed here, same test set — and pass when run in isolation.

AI Disclosure

• I did use AI assistance (describe below)

Investigation, patch and tests written with Claude; reviewed and verified by me.

[Copilot]

🟡 Changes recommended

Legacy-mode and dotted extension commands currently produce incorrect invocations.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Enables Bob workflow dispatch through its headless bob run interface.

Changes:

• Adds Bob CLI argument and command-invocation construction.
• Adds regression tests for dispatch formats and IDE-first configuration.

File summaries

File	Description
src/specify_cli/integrations/bob/__init__.py	Implements Bob headless dispatch.
tests/integrations/test_integration_bob.py	Tests Bob dispatch behavior.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 2
• Review effort level: Balanced

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[mnriem]

Thanks — the bob run dispatch approach is right, and the requires_cli=False reasoning is sound. The re-review found two invocation-rendering bugs to fix before merge: (1) effective_invoke_separator() is called without project_root, so it always falls back to Bob's fresh-project default (-) and gets legacy mode wrong — thread the project context through; (2) only the first separator is converted, so a dotted extension command like speckit.git.commit renders /speckit-git.commit in skills mode, but the installed skill is speckit-git-commit — convert all segments. Re-request once addressed.