feat(schema-compiler): Support predefined named numeric formats

[ovr]

Add named format aliases (abbr, accounting, number_X, percent_X, currency_X, decimal_X) that are validated during schema compilation and resolved to d3-format specifiers as custom-numeric format objects.

Existing bare formats (number, percent, currency, id) are preserved as separate types to avoid a breaking API change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.79%. Comparing base (5fc721f) to head (6f62b8c).
⚠️ Report is 1 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (5fc721f) and HEAD (6f62b8c). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (5fc721f)	HEAD (6f62b8c)
cubesql	1	0

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #10563       +/-   ##
===========================================
- Coverage   78.56%   57.79%   -20.77%     
===========================================
  Files         473      224      -249     
  Lines       92723    17547    -75176     
  Branches     3606     3609        +3     
===========================================
- Hits        72849    10142    -62707     
+ Misses      19330     6861    -12469     
  Partials      544      544               

Flag	Coverage Δ
cube-backend	57.79% <100.00%> (+0.03%)	⬆️
cubesql	?

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