Add LinaAI automatic Codex routing

Docs/AI/SelfHostedAiDevelopmentStack.md

@@ -30,13 +30,15 @@ Codex escalation when local tooling is over its head.
 
 ## Operating Model
 
-1. Local AI gathers context and proposes small changes.
-2. Work happens on a branch, not directly on `main`.
-3. The agent reports risk, files inspected, commands run, and confidence.
-4. Tests/builds decide whether a change is acceptable.
-5. After two failed local attempts, stop and escalate.
-6. Codex escalation uses the npm Codex CLI, not the API.
-7. Human review controls merges.
+1. Start with `Scripts/linaai_task.sh`, not raw Aider, for normal work.
+2. Qwen/Ollama performs a preflight risk and confidence check.
+3. Default confidence threshold is `0.75`.
+4. High-risk tasks or low-confidence tasks route to Codex automatically.
+5. Aider runs only for acceptable supervised local work.
+6. If Aider fails, `Scripts/linaai_task.sh` writes a status file and calls
+   Codex through `Scripts/ai_codex_escalate.sh`.
+7. Codex escalation uses the npm Codex CLI, not the API.
+8. Human review controls merges.
 
 ## Codex Escalation
 
@@ -44,6 +46,19 @@ Use `Scripts/ai_codex_escalate.sh` with a completed task status file. The
 script prefers a locally installed `codex` command and falls back to
 `npx -y @openai/codex exec`.
 
+For normal tasks, use:
+
+```bash
+cd ~/repos/AgrarianGame
+Scripts/linaai_task.sh "your task here"
+```
+
+To test automatic escalation without editing files:
+
+```bash
+Scripts/linaai_task.sh --dry-run --force-escalate "Test escalation path only."
+```
+
 On `LinaAI`, the npm Codex CLI is installed, but it still needs an authenticated
 Codex login before cloud escalation can run:
 
@@ -54,7 +69,7 @@ codex login
 
 Codex should be called for:
 
-- confidence below `0.65`,
+- confidence below `0.75`,
 - two failed build/test attempts,
 - Unreal compile errors that persist,
 - tasks touching save systems, multiplayer, auth, payments, AGR wallet