feat(status): put the abbreviated hash next to the short ID

[narnaud]

The hash sat at the end of the commit line, away from the ID it belongs
with and past a subject of any length. It now follows the ID, so both
identifiers a user may want to copy sit together at the head of the line.

Short IDs keep their existing widths, and the TUI still shows no hash.

Co-Authored-By: Claude Opus 5 (1M context) noreply@anthropic.com
Change-Id: I3a7b0cf5827e615d05929a80db355b2cc190f765

Summary by CodeRabbit

• User Experience
  • Commit listings now show each short ID and abbreviated hash before the commit message, with consistent column alignment.
• Documentation
  • Updated status output, tutorials, and workflow examples to reflect the commit display format and resulting commit identifiers.

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Reviewing files that changed from the base of the PR and between 2895a7c and 2e8842d.

📒 Files selected for processing (1)

• specs/001-status.md

🚧 Files skipped from review as they are similar to previous changes (1)

• specs/001-status.md

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📝 Walkthrough

Walkthrough

Commit output now uses the short ID, abbreviated hash, and subject in that order. The change updates graph rendering, status parsing, tests, specifications, and documentation examples.

Changes

Commit output ordering

Layer / File(s)	Summary
Rendering contract and implementation specs/001-status.md, specs/002-shortid.md, src/core/graph.rs	Commit rendering now places the abbreviated hash before the subject. The TUI continues to omit hashes.
Rendering tests and status parsing src/core/graph_test.rs, tests/integration/helpers.sh	Tests cover branch, loose, file-bearing, root, and persistent-ID output. Status parsing reads the short ID from the third field.
Documentation and output examples docs/src/commands/status.md, docs/src/guides/*	Status and guide examples use the revised field order and, in some cases, updated hashes.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~12 minutes

Change: Feature

Merge Risk: 🔵 Low · up to 2e884

Confirm that the status specification and its topology examples agree before merging.

🚥 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 clearly describes the main change: moving the abbreviated hash next to the short ID in status output.
Docstring Coverage	✅ Passed	Docstring coverage is 86.67% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 15 functions across 3 files. (1 skipped: 1 …
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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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
In `@specs/001-status.md`:
- Line 29: Update the topology examples so each abbreviated commit hash appears
before its commit subject, matching the normative format and the examples’
fixed-column layout; change the entries currently shown as “B bbbbbbb” and “A
aaaaaaa” to the corresponding hash-then-subject order.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Advanced

Run ID: 90e27fb5-ee3c-4cde-a2aa-6e5c7e99621a

📥 Commits

Reviewing files that changed from the base of the PR and between eb1aeac and 2895a7c.

📒 Files selected for processing (13)

• docs/src/commands/status.md
• docs/src/guides/amending.md
• docs/src/guides/fixup.md
• docs/src/guides/moving-commits.md
• docs/src/guides/moving-files.md
• docs/src/guides/splitting.md
• docs/src/guides/tutorial.md
• docs/src/guides/uncommitting.md
• specs/001-status.md
• specs/002-shortid.md
• src/core/graph.rs
• src/core/graph_test.rs
• tests/integration/helpers.sh

Included review availability: Your plan provides up to 10 included reviews per hour; 4 remain after this review.