fix(tier2): undo sandbox file leaks from 00e5a3f2

Tier-2 autonomous sandbox-specific files leaked into the main repo
via an accidental `git add .` in the tier-2 clone. Revert the
selective subset the user identified (not the whole commit):

- Delete .opencode/agents/tier2-autonomous.md and
  .opencode/commands/tier-2-auto-execute.md (canonical sources
  remain at conductor/tier2/agents/ and conductor/tier2/commands/)
- Restore opencode.json MCP path to manual_slop and restore the
  default_agent: tier2-tech-lead
- Restore mcp_paths.toml extra_dirs to ["C:/projects/gencpp"]

The other changes in 00e5a3f2 (4 throwaway scripts under
scripts/tier2/artifacts/, the project_history.toml timestamp) are
out of scope for this fix and remain at HEAD.

opencode.json

@@ -1,5 +1,6 @@
 {
   "$schema": "https://opencode.ai/config.json",
+  "model": "zai/glm-5",
   "small_model": "zai/glm-4-flash",
   "provider": {
     "zai": {
@@ -15,6 +16,7 @@
     "conductor/workflow.md",
     "conductor/tech-stack.md"
   ],
+  "default_agent": "tier2-tech-lead",
   "mcp": {
     "manual-slop": {
       "type": "local",
@@ -22,12 +24,12 @@
         "C:\\Users\\Ed\\scoop\\apps\\uv\\current\\uv.exe",
         "run",
         "python",
-        "C:\\projects\\manual_slop_tier2\\scripts\\mcp_server.py"
+        "C:\\projects\\manual_slop\\scripts\\mcp_server.py"
       ],
       "enabled": true,
       "timeout": 30000,
       "environment": {
-        "PYTHONPATH": "C:\\projects\\manual_slop_tier2\\src",
+        "PYTHONPATH": "C:\\projects\\manual_slop\\src",
         "GIT_TERMINAL_PROMPT": "0",
         "GCM_INTERACTIVE": "never",
         "GIT_ASKPASS": "echo",
@@ -54,90 +56,11 @@
           "git log*": "allow"
         }
       }
-    },
-    "tier2-autonomous": {
-      "model": "minimax-coding-plan/MiniMax-M3",
-      "temperature": 0.4,
-      "permission": {
-        "edit": "allow",
-        "read": {
-          "*": "deny",
-          "C:\\projects\\manual_slop_tier2\\**": "allow"
-        },
-        "write": {
-          "*": "deny",
-          "C:\\projects\\manual_slop_tier2\\**": "allow"
-        },
-        "bash": {
-          "*": "allow",
-          "*AppData\\*": "deny",
-          "*AppData\\Local\\Temp\\*": "deny",
-          "*$env:TEMP*": "deny",
-          "*$env:TMP*": "deny",
-          "*%TEMP%*": "deny",
-          "*%TMP%*": "deny",
-          "*GetTempPath*": "deny",
-          "*gettempdir*": "deny",
-          "*mkstemp*": "deny",
-          "git push*": "deny",
-          "git checkout*": "deny",
-          "git restore*": "deny",
-          "git reset*": "deny"
-        }
-      }
     }
   },
   "permission": {
-    "edit": "deny",
-    "read": {
-      "*": "deny",
-      "C:\\projects\\manual_slop_tier2\\**": "allow"
-    },
-    "write": {
-      "*": "deny",
-      "C:\\projects\\manual_slop_tier2\\**": "allow"
-    },
-    "bash": {
-      "*": "deny",
-      "git status*": "allow",
-      "git diff*": "allow",
-      "git log*": "allow",
-      "git add*": "allow",
-      "git commit*": "allow",
-      "git switch*": "allow",
-      "git branch*": "allow",
-      "git fetch*": "allow",
-      "git remote*": "allow",
-      "git rev-parse*": "allow",
-      "git show*": "allow",
-      "git config --get*": "allow",
-      "ls*": "allow",
-      "cat*": "allow",
-      "head*": "allow",
-      "tail*": "allow",
-      "find*": "allow",
-      "echo*": "allow",
-      "mkdir*": "allow",
-      "cp*": "allow",
-      "mv*": "allow",
-      "rm*": "allow",
-      "uv run python scripts/run_tests_batched.py*": "allow",
-      "uv run python scripts/tier2/*": "allow",
-      "pwsh -File scripts/tier2/*": "allow",
-      "*AppData\\*": "deny",
-      "*AppData\\Local\\Temp\\*": "deny",
-      "*$env:TEMP*": "deny",
-      "*$env:TMP*": "deny",
-      "*%TEMP%*": "deny",
-      "*%TMP%*": "deny",
-      "*GetTempPath*": "deny",
-      "*gettempdir*": "deny",
-      "*mkstemp*": "deny",
-      "git push*": "deny",
-      "git checkout*": "deny",
-      "git restore*": "deny",
-      "git reset*": "deny"
-    }
+    "edit": "ask",
+    "bash": "ask"
   },
   "share": "manual",
   "autoupdate": true,
@@ -159,7 +82,5 @@
   },
   "plugin": [
     "superpowers@git+https://github.com/obra/superpowers.git"
-  ],
-  "default_agent": "tier2-autonomous",
-  "model": "minimax-coding-plan/MiniMax-M3"
+  ]
 }