feat: persistent organized ledger, grouping cache, TUI multi-select & preview

[zackkitzmiller]

Summary

• Organized ledger: persistent tracking of previously organized files (path + content hash). Re-runs skip known files; new files identical to organized content are flagged as duplicates. --no-ledger / --ledger <path> CLI flags control behavior.
• Grouping cache: Claude grouping calls are cached by content hash set + existing folder labels. Unchanged re-runs replay the cached grouping and send zero tokens.
• Nested folder labels: group labels like Work/Acme Corp/Website Redesign become real directory trees. Sanitization handles traversal, backslash, and empty segments safely.
• Existing group awareness: Claude is prompted with folder names from the ledger, routing new files into matching groups instead of creating near-duplicates.
• TUI multi-select: Enter marks files in Organize mode; d/m/n operate on the marked set (or cursor file when nothing is marked). Marks shown as filled/empty circles with selection count in title.
• TUI file preview modal: Spacebar in the Files pane opens a modal preview (images via ratatui-image, text files scrollable, binary shows "no preview"). Reuses the DiffState modal pattern from Dupes mode.
• .spindel-ignore: sentinel file excludes a directory and all its children from scanning.
• Progress improvements: analysis progress shows cached vs sent file counts.

Test plan

• cargo test — 318 tests pass
• cargo clippy — no warnings
• Manual: run spindle on a directory, verify ledger is written after organize
• Manual: re-run on the same directory, verify skipped files and zero-token grouping
• Manual: add a new file with same content as an organized one, verify duplicate flagged
• Manual: verify nested labels create real directory trees
• Manual: test TUI multi-select (Enter to mark, d to batch remove, m to batch move)
• Manual: test spacebar preview for image and text files
• Manual: create .spindel-ignore in a subfolder, verify it's skipped

🤖 Generated with Claude Code

[ecc-tools]

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[ecc-tools]

🔒 Upgrade Required

Private repository analysis requires Pro or Enterprise.

Upgrade: https://ecc.tools/pricing?plan=pro

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_{ECC Tools keeps the core app open, and puts private repos, team features, and enterprise controls behind paid tiers.}