Sort models by version desc and clarify effort belongs to the model (#18)

Reorder the Opus (4.8>4.7>4.6>4.5), MiMo (keep the two variants
adjacent) and GLM (5.2>5.1>5 Turbo) entries so the registry sorts by
version high-to-low instead of the previous scrambled order, adjusting
each model JSON's `order` and regenerating the README registry tables.

Also revise the model-vs-harness explainer: reasoning effort is a
capability dial of the model itself (same weights at high vs low effort
reason like different models), so it belongs to the "model" dimension
alongside the weights rather than being framed as a side parameter of
the agent.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

models/claude-opus-4-5-cursor.json

@@ -4,7 +4,7 @@
   "harness": "Cursor",
   "effort": "Thinking",
   "artifactDir": "claude-opus-4-5/cursor-thinking",
-  "order": 18,
+  "order": 17,
   "runs": {
     "mythos-craft": {
       "note": {

models/claude-opus-4-6-cc.json

@@ -4,7 +4,7 @@
   "harness": "Claude Code",
   "effort": "Max",
   "artifactDir": "claude-opus-4-6/claude-code-max",
-  "order": 14.6,
+  "order": 16,
   "runs": {
     "pelican-cycling": {
       "note": {

models/claude-opus-4-6-cursor.json

@@ -4,7 +4,7 @@
   "harness": "Cursor",
   "effort": "Max",
   "artifactDir": "claude-opus-4-6/cursor-max",
-  "order": 17,
+  "order": 16.5,
   "runs": {
     "mythos-craft": {
       "note": {

models/claude-opus-4-7-cc.json

@@ -4,7 +4,7 @@
   "harness": "Claude Code",
   "effort": "Max",
   "artifactDir": "claude-opus-4-7/claude-code-max",
-  "order": 14.7,
+  "order": 15,
   "runs": {
     "mythos-craft": {
       "note": {

models/claude-opus-4-7-cursor.json

@@ -4,7 +4,7 @@
   "harness": "Cursor",
   "effort": "Max",
   "artifactDir": "claude-opus-4-7/cursor-max",
-  "order": 16,
+  "order": 15.5,
   "runs": {
     "mythos-craft": {
       "note": {

models/claude-opus-4-8-cc.json

@@ -4,7 +4,7 @@
   "harness": "Claude Code",
   "effort": "Max",
   "artifactDir": "claude-opus-4-8/claude-code-max",
-  "order": 15,
+  "order": 14,
   "runs": {
     "mythos-craft": [
       {

models/glm-5-2.json

@@ -4,7 +4,7 @@
   "harness": "ZCode",
   "effort": "Max",
   "artifactDir": "glm-5-2/zcode-max",
-  "order": 121,
+  "order": 119,
   "runs": {
     "mythos-craft": {
       "note": {

models/glm-5-turbo.json

@@ -4,7 +4,7 @@
   "harness": "ZCode",
   "effort": "Thinking",
   "artifactDir": "glm-5-turbo/zcode-thinking",
-  "order": 119,
+  "order": 121,
   "runs": {
     "mythos-craft": [
       {

models/mimo-v2-5-pro-ultraspeed.json

@@ -3,7 +3,7 @@
   "vendor": "Xiaomi",
   "harness": "Web",
   "effort": "Default",
-  "order": 99,
+  "order": 97.5,
   "runs": {
     "mythos-craft": [
       {