rewrite(phase6): batch 13 — MOCK/PWRMODE catalog re-derivation (Phase 6 complete)

[SoundMatt]

rewrite(phase6): batch 13 — MOCK/PWRMODE catalog re-derivation (Phase 6 complete)

Part of the v3.0.0 ground-up rewrite (cpp-RCP #129, ROADMAP.md Phase 17),
branch rewrite/v3-from-c-rcp. Phase 6 (requirement catalog), batch 13 of
13 -- the FINAL batch, covering the two largest files in the codebase
(mock.hpp/test_mock.cpp) plus genuinely new PWRMODE porting work.

Scope

mock.hpp's REQ-MOCK-* (c-RCP: 33 entries), powerstate.hpp's REQ-PWRMODE-*
(c-RCP: 28 entries, split across c-RCP's power.c+powerstate.c, folded
into cpp-RCP's single powerstate.hpp per this rewrite's earlier design
choice) -- 61 c-RCP entries total. Plus mandatory pickup of 5
mock.hpp-scoped deferred gaps from batches 5 and 6.

Part C — deferred-gap pickup (mandatory, done first)

REQ-WDG-010 (batch 5), REQ-E2E-033/039/041/047 (batch 6): all confirmed
still genuinely implemented+tested in mock.hpp/test_mock.cpp exactly as
found originally -- promoted from .fusa-reqs-pending.json straight into
.fusa-reqs.json with real fusa:req/fusa:test manifest tags added (they'd
only ever had prose/bracket-tag mentions, never a real manifest tag).

REQ-MOCK-* (33 c-RCP entries)

3 new catalog entries (027 pending_count, 028 REQUEST_NOT_FOUND, 029
CHAIN_ERROR/ABORTED -- free ids with real pre-existing tests, now
manifest-tagged). All 26 of cpp's pre-existing REQ-MOCK-001..026 are
confirmed id-collisions (same pattern as every batch since 6 -- cpp's
own entries describe unrelated Table-33 evt-classification content
numbered before this rewrite's id-reuse convention). Filed to pending
with per-id verification: 15 collision ids are separately implemented
+tested elsewhere in cpp (cross-referenced to REQ-LIFECYCLE-/REQ-SRV-/
REQ-CANCEL-*), 1 not-applicable (C++ RAII supersedes a manual-refcount
requirement), 10 genuine gaps (mostly cpp's fixed-10-endpoint
architecture lacking c-RCP's dynamic add/remove-endpoint API). Free ids
030-033 (stream-scoped lookup family): genuine architectural gaps, filed
honestly rather than force-fit.

REQ-PWRMODE-* (28 c-RCP entries, genuinely new porting work)

Unlike every other batch this phase, powerstate.hpp had ZERO existing
REQ-PWRMODE-* citations to walk -- this required reading c-RCP's
power.c+powerstate.c source directly against cpp's powerstate.hpp.
20 new catalog entries (19 investigated + 028, which had code tags but
no catalog entry). Implemented 3 small, safe fixes with new tests:
cold_start_lifecycle_target() (closes 003+014), and a backward-
compatible network_available parameter on begin_wake_from_sleep()
(closes 016). REQ-PWRMODE-004 was initially assessed as a small fix but
reclassified to a genuine architectural gap on closer inspection: the
literal transition-table fix would contradict an already-tested,
protected REQ-PWR-002 assertion -- filed to pending rather than forcing
a design decision that isn't this batch's to make. 8 total architectural
gaps filed (004, 012, 017, 019, 021, 022, 026, 027), most notably 026
(mode commits before the sleep/standby response is confirmed
transmitted -- a real safety-relevant ordering gap, not cosmetic).

No new entry (MOCK or PWRMODE) carries severity:cybersecurity -- verified
against CYBERSECURITY.md/ci.yml and c-RCP's own severity fields. sec-
tested count unchanged at exactly 72.

Verification

Independently re-verified (the porting agent's own final step re-ran
the real pinned cpfusa v0.18.0 binary against the WHOLE catalog, not
just this batch, to catch any regression across all 12 prior batches):
semantic id-keyed diff confirms zero pre-existing entries modified/
deleted, exactly 28 new ids matching the report's breakdown exactly
(MOCK 3, PWRMODE 20, promoted-deferred 5), zero duplicate ids in either
the catalog or the pending file. Independently re-ran the real cpfusa
binary myself against the merged worktree: testedRequirements ==
totalRequirements == 1133, cpfusa trace --gaps returns zero ids.
Confirmed sec-tested count holds at exactly 72/1133. Directly
spot-checked the REQ-PWRMODE-004 reclassification and REQ-WDG-010's
promotion against the real diff -- both accurate, and the 004
reclassification shows genuinely careful judgment (catching a real
conflict rather than force-fitting a fix). Full tree rebuilt from
scratch: 0 errors, 0 warnings, 58/58 ctest suites pass (100%).

Phase 6 complete

All 13 batches merged. Final catalog: .fusa-reqs.json 1105 -> 1133
entries (+28, all 100% traced and tested, zero regressions across all
13 batches, independently re-verified via a fresh whole-tree cpfusa
trace). Final pending/gap catalog: .fusa-reqs-pending.json 141 -> 174
entries (+38 added, -5 promoted = net +33), honestly documenting every
id-collision and architectural gap found across the whole phase. The
whole-catalog traceability gate (testedRequirements == totalRequirements)
is clean. A detailed Phase 6 completion summary will be posted to
issue #129 separately.

include/rcp/mock.hpp: +8 lines (tags only). include/rcp/powerstate.hpp:
+73 lines (2 new functions + tags). include/rcp/wakeup.hpp: +1 line
(tag only). tests/test_mock.cpp: +8 lines (tags only).
tests/test_powerstate.cpp: +76 lines (2 new test blocks).
tests/test_wakeup.cpp: +1 line (tag only).

Co-Authored-By: Claude Sonnet 5 noreply@anthropic.com