release(v4.8.1): bump framework and eight skills to 4.8.1 in lockstep; archive PR #43 reviews (two rounds)

Issue #26: one .mam.env parser for the wrapper and the Python tools,
decimal integer knobs, tests on a local MQTT broker. Merge-workspace
review: round 1 (@b58edac) claude agy PASS, codex NOT PASS (R1-R4), grok
no verdict (its late report, archived as report-c9ed5b14.md, found R1 too);
round 2 (@0eec795) 4/4 PASS. Reports and round-2 identity sidecars go to
.agents/reports/<session>/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff

.agents/reports/planner-reviewer-codex-01/report-95a22045.identity.json

@@ -0,0 +1,14 @@
+{
+  "loop_id": "loop-20261001T140030Z-34381f",
+  "base_sha": "e1eb22bd59ce825e3a22e86433c30f7ffd833810",
+  "head_sha": "0eec795cd1b46f7a28b9a1cc87ef8577619a731f",
+  "tree_sha": "584eac551f880232896b898cc43156f28ae1bacb",
+  "review_commit": "0eec795cd1b46f7a28b9a1cc87ef8577619a731f",
+  "reviewer": "planner-reviewer-codex-01",
+  "job_id": "95a22045",
+  "verdict": "PASS",
+  "transport": "herdr",
+  "evidence": "review-tree",
+  "isolation": "worktree",
+  "verified_at": "2026-10-01T14:27:22Z"
+}