Format SQL-like input tolerantly and correct block layout

[royashbrook]

changes

• expanded CASE blocks, JOIN/APPLY aligned with the primary table, no explicit INNER
• adjacent CTEs as ), next as ( and plain integer TOP counts
• DATE_TRUNC/ARRAY_AGG casing and default-mode boolean-shaped TRUE/FALSE operands
• best-effort formatting by default, with the existing refusal contract behind -Strict
• useful parser diagnostics on stderr, including line, column and actual message
• fallback first-projection alignment, counted independently in each SELECT

The fallback preserves unfamiliar syntax rather than translating dialects. It preserves inline spacing, organizes recognizable boundaries, and returns unchanged input with a warning if it cannot retain the tokens. File/dependency/output failures remain errors. No database execution or claim of PostgreSQL/MySQL validation.

checks

• 67 structural, 15 reported-input/preservation, and 15 CLI checks pass locally at 514d5d7
• strict coverage unchanged across 129 pinned public SQL samples
• all 129 public inputs produce second-pass-stable output in default mode
• docs and generated examples updated, relative links and skill validation pass
• Windows/macOS/Linux each pass all 97 checks at 514d5d7: https://github.com/royashbrook/roy-sql/actions/runs/35049750596

The published 2.27.0 installation is unchanged. The 2.28.0 candidate is for review.

refs #2