[LOADED_DOCS: 2 files, no new loads]

Update DB connection, protocol flush policy, and docs

- Switch appsettings.json to production DB connection string
- Update copilot-instructions.md to reference Rules #1-6
- Set FlushPolicy.DoubleBuffered for AcBinary protocol in PluginNopStartup.cs

Nop.Plugin.Misc.AIPlugin/.github/copilot-instructions.md

@@ -9,7 +9,7 @@ This plugin follows the AI Agent Core Protocol defined in AyCode.Core. Same rule
 
 **Mandatory reads at session start** — in addition to this `copilot-instructions.md`, the agent MUST also load:
 
-1. **Canonical AI Agent Core Protocol** — AyCode.Core's `copilot-instructions.md` (for the full numbered Rules #1-5 that this inherit file references but does NOT duplicate). Path: `../../../../../../Aycode/Source/AyCode.Core/.github/copilot-instructions.md`.
+1. **Canonical AI Agent Core Protocol** — AyCode.Core's `copilot-instructions.md` (for the full numbered Rules #1-6 that this inherit file references but does NOT duplicate). Path: `../../../../../../Aycode/Source/AyCode.Core/.github/copilot-instructions.md`.
 2. **The two reactive workspace skills** (see `## Shared Agent Skills` section below for paths; the three user-gated skills are lazy-loaded on demand):
    - `docs-discovery/SKILL.md` — **reactive** (triggers on domain questions)
    - `docs-check/SKILL.md` — **reactive** (triggers at end of code-modifying responses)

Nop.Plugin.Misc.AIPlugin/Infrastructure/PluginNopStartup.cs

@@ -164,6 +164,8 @@ public class PluginNopStartup : INopStartup
         .AddAcBinaryProtocol(opts =>
         {
             opts.ProtocolMode = BinaryProtocolMode.AsyncSegment;
+            opts.FlushPolicy = FlushPolicy.DoubleBuffered;
+
             // Explicit AcLogger instance (name-based category, matches the previous setup).
             // If omitted, the options extension falls back to ILogger<AcBinaryHubProtocol> from DI.
             opts.Logger = new Logger(nameof(AyCodeBinaryHubProtocol));