consolidation pass: replace CONSTRAINTS with current guardrails

CONSTRAINTS.md

@@ -33,113 +33,67 @@ All paths:
 Uploads write directly to runtime.
 
 No:
-- Staging folders
-- Symlink injection
-- Delayed deployment
+- staging folders
+- symlink injection
+- delayed deployment
 
 ---
 
 ## 4. Metadata Is Hidden
 
-`.zlh_metadata.json` and `.zlh-shadow` must never be exposed via file APIs.
+`.zlh_metadata.json`
+`.zlh-shadow`
 
-Filtered centrally inside the agent `internal/files` package, not in route handlers.
+Must never be exposed via file APIs.
 
 ---
 
 ## 5. Upload Allowlist Only
 
 Only:
+
 - `mods/*.jar`
 - `world/datapacks/*.zip`
 
-Anything else → `403`.
+Anything else → 403.
 
 ---
 
 ## 6. Delete Is Strictly Constrained
 
-No recursive delete. No directory delete. One-level file only.
-
-Allowed paths:
-- `mods-removed/<file>`
-- `mods-uploaded/<file>`
-- `logs/<file>.log`
-- `logs/<file>.log.gz`
+No recursive delete.
+No directory delete.
+One-level file only.
 
 ---
 
 ## 7. No Curated Inference
 
-If metadata does not exist → `source: null`
+If metadata does not exist:
+- `source: null`
 
-Do not assume curated status from filename or path.
+Do not assume curated status.
 
 ---
 
 ## 8. Upload Transport
 
 API upload must:
-- Stream via raw `http.request` piping
-- Not buffer entire file in memory
-- Not use `fetch()` streaming
-- Not re-implement upload policy (agent enforces)
+- Stream
+- Not buffer entire file
+- Not use fetch streaming
+- Use raw piping
 
 ---
 
 ## 9. Timeouts
 
-Upload route must use extended timeout. Other file routes remain short.
+Upload route must use extended timeout.
+Other file routes remain short.
 
 ---
 
 ## 10. Portal Does Not Enforce Security
 
-Portal may validate for UX (extension pre-check, size warning). Agent enforces real policy.
-
----
-
-## 11. Frontend Cannot Reach Agents Directly
-
-All agent access flows through API. Container IPs are internal-only (`10.x` network). No CORS headers on agents.
-
-```
-Frontend → API → Agent     ✅
-Frontend → Agent            ❌
-```
-
----
-
-## 12. Authentication
-
-- JWT tokens issued by API only
-- No cookies for auth
-- No CSRF tokens
-- No APIv1 or Pterodactyl auth patterns
-- Portal stores tokens client-side (`sessionStorage`)
-
----
-
-## 13. Console Must Remain PTY-Backed
-
-- PTY-backed
-- Agent-owned
-- WebSocket-based
-- Full duplex (input + output)
-
-Disallowed:
-- Log tailing as "console"
-- Exec-per-command models
-- Frontend-owned processes
-- Proxmox console passthrough
-
----
-
-## Enforcement
-
-If a change violates these constraints:
-- The change must be reverted
-- The documentation takes precedence
-- AI tools must be corrected
-
-These constraints override convenience.
+Portal may validate for UX.
+Agent enforces real policy.