refactor: split auditui into auditui-core + auditui workspace

[rollysys]

Summary

• Split the single-crate auditui into a Cargo workspace with auditui-core (lib) + auditui (bin), so future frontends (e.g. the planned web launcher) can depend on the same transcript/session/cost/dashboard code without duplicating parsers.
• All moves are git mv renames (100% similarity — no content diff). The only non-rename change is 9 lines in tui/src/main.rs where mod X; declarations become pub use auditui_core::{X};, which keeps crate::session::… references inside tui.rs resolving so business code is untouched.
• Makefile / deploy-xserver.sh untouched: workspace-root cargo build --release still produces target/release/auditui at the same path.

Layout

auditit-tui/
├── Cargo.toml        # workspace root, members = ["core", "tui"]
├── core/             # auditui-core (lib): providers, session, cache,
│                     #   cost, dashboard, memory, skills
└── tui/              # auditui (bin): main, tui, md, update

Test plan

• cargo build --release green at workspace root
• ./target/release/auditui --dry-run → indexes 10502 sessions (CLA/COD/HER/QWN breakdown unchanged)
• ./target/release/auditui --memory-dump → global + 21 projects listed
• ./target/release/auditui --group-dump → 213 groups from 10502 sessions
• ./target/release/auditui --bench → cold 210ms, warm 9ms (in the same range as before the split)
• Interactive TUI smoke: all four tabs, search, session detail, dashboard range switching, memory + skills markdown rendering

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chore
  • Restructured internal codebase from a single package to a modular workspace architecture with a shared library and application layer, improving maintainability and code organization.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 6cde5fda-f2a5-4b7c-8626-cf981f30dce0

📥 Commits

Reviewing files that changed from the base of the PR and between b3bb3a9 and c5b513d.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (20)

• CLAUDE.md
• Cargo.toml
• core/Cargo.toml
• core/src/cache.rs
• core/src/cost.rs
• core/src/dashboard.rs
• core/src/lib.rs
• core/src/memory.rs
• core/src/providers/claude.rs
• core/src/providers/codex.rs
• core/src/providers/hermes.rs
• core/src/providers/mod.rs
• core/src/providers/qwen.rs
• core/src/session.rs
• core/src/skills.rs
• tui/Cargo.toml
• tui/src/main.rs
• tui/src/md.rs
• tui/src/tui.rs
• tui/src/update.rs

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📝 Walkthrough

Walkthrough

Repository converted from a single-crate Rust TUI into a Cargo workspace with two crates: auditui-core (library) containing data-layer and shared logic, and tui (binary) containing TUI entry points and UI-specific code; root manifest changed to a workspace manifest and documentation updated.

Changes

Cohort / File(s)	Summary
Workspace Manifest & Root Cargo.toml	Root manifest converted to a workspace ([workspace] resolver = "2") and package metadata moved into [workspace.package]; crate-level package fields and bin target removed.
Core crate manifest core/Cargo.toml	New library crate auditui-core added with dependencies for serde, chrono, walkdir, rayon, rusqlite (bundled), etc.
Core library exports core/src/lib.rs	New public module declarations added: cache, cost, dashboard, memory, providers, session, skills.
TUI crate manifest tui/Cargo.toml	New binary crate auditui added, referencing workspace metadata and depending on auditui-core; UI-specific deps declared (tui rendering, markdown, reqwest, etc.).
TUI entry / re-exports tui/src/main.rs	Replaced local mod declarations with public re-exports from auditui_core (pub use auditui_core::{cache, cost, dashboard, memory, providers, session, skills};).
Documentation update CLAUDE.md	Architecture doc updated to describe workspace layout: core/ for shared logic (transcript parsing, session normalization, cache, dashboard, pricing), tui/ for TUI entry, markdown rendering, and tui/src/update.rs self-update checks.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~22 minutes

Poem

🐰 I hopped from one crate to two,

Core seeds planted, TUI grew.
Workspace paths now split and neat,
Shared logic down the middle street.
A joyful jig — new builds to chew!

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch refactor/workspace

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