feat(transports/cli): pin table column order via Config

[theogravity]

Summary

Resolves #66.

The cli transport's slice-of-map table renderer sorted columns purely lexicographically, which works for ad-hoc tables but produces a readability regression when an identifier column should anchor the row. `monorel` migrated to the cli transport and lost its hand-coded column ordering this way: `bump | changeset | package | summary` instead of `CHANGESET PACKAGE BUMP SUMMARY`.

Add a `Config.TableColumnOrder []string` knob:

```go
cli.New(cli.Config{
TableColumnOrder: []string{"package", "changeset"},
})
```

Keys named here render in the listed order at the front of the table; remaining keys sort lexicographically and follow. The knob is additive (pin only the leading columns; the rest sort). Pinned keys absent from every row are silently skipped, so the same `TableColumnOrder` is safe to reuse across call sites with different row shapes. Empty / nil falls back to the prior fully-lexicographic behavior — zero behavior change for existing users.

Released as a `:minor` bump on `transports/cli/v2` via `.changeset/cli-table-column-order.md`.

Out of scope

• LLM reference files (`docs/src/public/llms.txt`, `llms-full.txt`) — the cli section in those files only exists on PR docs: address v2 release review findings #67's branch (not yet merged). `TableColumnOrder` will be added there in a small follow-up once docs: address v2 release review findings #67 lands.
• Per-call column order (e.g. some `WithMetadata([]Metadata{...}, cli.OrderHint(...))` shape). monorel doesn't need it; out of scope per the issue.
• Header capitalization control. Existing `strings.ToUpper(k)` is fine.

Test plan

• `go test -race -count=1 ./...` in `transports/cli/` passes (incl. 4 new `TestTableColumnOrder*` tests covering each of the four cases enumerated in feat(transports/cli): pin table column order via Config #66)
• `go test -race -count=1 ./...` in the main module still passes (no regressions in the broader test suite)
• `bash scripts/foreach-module.sh build` clean across all modules
• `bun run docs:build` produces a clean VitePress site
• No em-dashes introduced (project style rule)
• Pre-commit (gofmt + vet + staticcheck) and pre-push (`go test -race`) hooks clean

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