Add go fix ./... to just check

Wrap errors with context, use %q in Bool error, and guard Int overflow

Wrap all query and parse errors with fmt.Errorf %w so callers get
context about which command failed and can use errors.Is/errors.As.
Use %q in Bool error message to make whitespace visible. Add bounds
check in Int before float64-to-int cast to prevent silent overflow
on 32-bit platforms. Add TruncationError type for non-integer floats.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add context.Context to Querier interface and all query functions

Update the Querier interface and all typed query functions (Bool, Int,
Float64, String, and their format variants) to accept context.Context
as the first parameter. Update copyright to 2026. Add CLAUDE.md.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

v0.5.1 (released 11-Apr-24)

v0.5.0 (released 10-Apr-24)

v0.4.1 release (05-Apr-24)

v0.4.0 release (30-Aug-23)

v0.3.0 release (17-Jan-20)

v0.2.0 release (17-Jan-20)

v0.1.0 release (17-Jan-20)