feat(scheduler-sim-repl-verbosity): task 7.2 - implement resource formatting helpers

Implements repl_is_bytes_valued_resource()/repl_format_bytes_human()
(mirroring xce_test's confirmed is_bytes_valued_resource()/
format_bytes_human() precedent exactly) and the units_mode setting
(explicitly defaulted to both, not left to zero-init) wired into
set units raw|human|both alongside the existing set speed/output/verify
branches (Requirements 6.1-6.3). All 8 of task 7.1's tests pass.

Split repl_format_ts_human(), the Jobid Range Compressor (task 1.2),
and these two new helpers out of repl.c into a new repl_fmt.c: adding
them in place pushed repl.c to 929 lines (16.1% over the 800-line
cap), and unlike task 6.2's single-function split attempt (which
didn't even achieve compliance), bundling these three pure-formatter
groups together does - repl.c settles at 587 lines, repl_fmt.c at 402,
both comfortably under cap. Required a matching #include line in the
20 test files that white-box #include repl.c, plus extending
test_sim_isolation.c's forbidden-include/symbol scan to cover the new
file, following the repl_rollup.c split precedent from task 2.2.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YAWMhfRJFnmmnG8h97yUDd

src/scheduler/meson.build

@@ -20,6 +20,7 @@ scheduler_srcs = [
   'src/sim_verify.c',
   'src/sim_record.c',
   'src/repl.c',
+  'src/repl_fmt.c',
   'src/repl_rollup.c',
   'src/repl_break.c',
   'src/repl_info.c',
@@ -96,7 +97,7 @@ sched_core_isolation_lib = static_library(
 # Task 11.3 (scheduler-core spec, Req 5 AC 17): isolated compile target for
 # the simulation driver's own files, consumed by
 # testsuite/test_sim_isolation.c to prove at build time that
-# sim.c/sim_loop.c/sim_record.c/repl.c/repl_break.c/repl_info.c/
+# sim.c/sim_loop.c/sim_record.c/repl.c/repl_fmt.c/repl_break.c/repl_info.c/
 # repl_params.c/sim_picker.c reference zero controller-facing symbols
 # (client/netio/xceapi/delay/idgen). All files are compiled together into
 # ONE archive -- task 11.2 added sim_loop.c as a sibling file to task
@@ -105,19 +106,23 @@ sched_core_isolation_lib = static_library(
 # fifth/sixth (task 12.2's own 800-line-cap split of repl.c's
 # breakpoint/state-inspection logic -- repl_internal.h's own "Why a split
 # at all" section has the full rationale), task 12.3 added repl_params.c
-# as a seventh (the same split, extended again for `snapshot`/`set`), and
+# as a seventh (the same split, extended again for `snapshot`/`set`),
 # bug-1567's fix added sim_picker.c as an eighth (sim_loop.c's own
 # "zero line-budget headroom" -- same reason its siblings above exist --
 # so the fix's picker-registration + post-load picker-rebuild-walk logic
-# lives here instead of growing sim_loop.c past its cap); covering only a
-# subset of them would repeat core.c's own siblings' (core_events.c/
-# core_session.c/core_clock.c) never-mechanically-covered gap for the sim
-# driver. Same "compiling to an object is enough, no real linking needed"
-# rationale as sched_core_isolation_lib above.
+# lives here instead of growing sim_loop.c past its cap), and the
+# scheduler-sim-repl-verbosity spec's task 7.2 remediation added repl_fmt.c
+# as a ninth (repl.c's own 800-line-cap split of its shared, dependency-free
+# formatting helpers -- repl_fmt.c's own header comment has the full
+# rationale); covering only a subset of them would repeat core.c's own
+# siblings' (core_events.c/core_session.c/core_clock.c)
+# never-mechanically-covered gap for the sim driver. Same "compiling to an
+# object is enough, no real linking needed" rationale as
+# sched_core_isolation_lib above.
 sched_sim_isolation_lib = static_library(
     'sched_sim_isolation',
     ['src/sim.c', 'src/sim_loop.c', 'src/sim_picker.c', 'src/sim_record.c',
-     'src/repl.c', 'src/repl_break.c', 'src/repl_info.c',
+     'src/repl.c', 'src/repl_fmt.c', 'src/repl_break.c', 'src/repl_info.c',
      'src/repl_params.c', 'src/repl_rollup.c'],
     include_directories: incdir,
     dependencies: scheduler_deps,