[nahime0]

Prepare release 0.27.7, dated November 3, with 68 audited release-note outcomes. The source ledger reconciles v0.27.6 through main 55758e892f: 67 merged PRs, 15 direct integrations and all 596 commits, with no unresolved sources.

Refresh the reference documentation for the current heap defaults, pipeline, runtime state and malformed unserialize() warnings; reconcile the existing roadmap items. Complete source docblocks and align assembly comments without changing Rust behavior. Keep documentation guidance consistent with the stable builtin rendering introduced by #2232.

Validation:

• Warning-free cargo build on the final merged head.
• Canonical builtin/symbol export, generated-docs drift checks, site compatibility and typed EIR boundary audits pass.
• Frontmatter and all 5,656 local documentation links checked; git diff --check passes.
• Local test execution was explicitly skipped; executable validation is delegated to this PR's CI.

Cargo package versions are left to release automation.