[ironystock]

Summary

• Swaps `rootCmd.Execute()` for `fang.Execute(ctx, rootCmd, fang.WithVersion(version))` in `main()`.
• All `--help` and subcommand `--help` output now renders with structured sections (USAGE / COMMANDS / FLAGS), aligned columns, and subdued styling.
• Errors get a styled prefix on stderr.
• `man` and `completion` subcommands ship for free (fang adds them).

Stacking

This PR is stacked on #8 (logger), which is stacked on #7 (refactor split). Base = `feat/cli-leveled-logger`. GitHub will auto-retarget as #7 → #8 → #9 merge in order.

Before / after (root --help)

Before (cobra default):
```
A portable, multi-directional memory system for AI.
...
Available Commands:
add Create a new memory
...
Flags:
-h, --help help for rememberize
```

After (fang):
```
A portable, multi-directional memory system for AI.

USAGE
rememberize [command] [--flags]

COMMANDS
add [--flags] Create a new memory
...

FLAGS
-h --help Help for rememberize
--json Output raw JSON (for scripting/piping)
-v --verbose Increase log verbosity (-v info, -vv debug)
```

Why `fang.WithVersion(version)`

Fang doesn't read cobra's `Version` field by default — without the option, `--version` reports `unknown (built from source)`. Passing the package-level `version` var (which goreleaser sets via `-ldflags`) wires it up.

Transitive dep skew

PR #8 brought in `charmbracelet/log v1.0.0`, which transitively pulled an older `x/cellbuf v0.0.13-...`. Fang needs `x/ansi v0.11.x`, but the older `cellbuf` was built against `x/ansi v0.8.x` and won't compile against the newer ansi.

Resolution: `go get github.com/charmbracelet/x/cellbuf@latest` brings both onto a coherent set (`cellbuf v0.0.15`, `ansi v0.11.5`). No source change required.

Verification

• `go build ./...` clean.
• `go test ./...` green (no test changes).
• `./bin/rememberize --version` → `rememberize version dev`.
• `./bin/rememberize --help` → styled output (see above).
• `./bin/rememberize list --help` → styled subcommand help.
• `./bin/rememberize completion bash` → fang's auto-generated bash completion script.

Test plan

• CI green.
• Manual sanity in a real terminal: confirm colored output renders. (Won't show in piped CI logs.)

Out of scope

No changes to any RunE. No flag renames. No behavior change.

🤖 Generated with Claude Code

---

^{Need help on this PR? Tag @codesmith with what you need.}

• Let Codesmith autofix CI failures and bot reviews