synth v0.67.0

What's Changed

• chore(deps): bump taiki-e/install-action from 2.87.5 to 2.87.11 by @dependabot[bot] in #1260
• chore(deps): bump tracing from 0.1.41 to 0.1.44 by @dependabot[bot] in #1262
• chore(deps): bump bitflags from 2.13.1 to 2.13.2 by @dependabot[bot] in #1263
• chore(deps): bump wat from 1.258.0 to 1.259.0 by @dependabot[bot] in #1265
• plan(v0.67): scope the release — "One root cause, not five symptoms" (7 artifacts) by @avrabe in #1268
• fix(codegen): RQ-67-CALLEESAVE (#1204) — the optimized path writes R9/R10/R11 and saved none of them; three sites, each found by a different oracle failing by @avrabe in #1271
• feat(codegen): RQ-67-VFPREACH (#1267) — reach the callee-saved VFP half; the rung is built, and unreached by any module in the corpus by @avrabe in #1295
• RQ-67-HIGHWORD (#1240): i64.clz/ctz/popcnt returned the OPERAND's high word — one stale field, not three missing zero-fills by @avrabe in #1296
• RQ-67-SUBTRACT (#242): the named lever does not exist — a measured refutation, no number moved and no waiver added by @avrabe in #1297
• RQ-67-NOTESGATE (#1259) + RQ-67-PINDOWN (#242): gate the release notes, and print the numbers prose keeps getting wrong by @avrabe in #1298
• release(v0.67.0): "One root cause, not five symptoms" — 7 artifacts, 5 implemented, 1 measured refutation by @avrabe in #1299

Full Changelog: v0.66.0...v0.67.0