feat: Add guild charters and task boards for various components

- Introduced guild charters for Scanner Deno, PHP, Ruby, Native, WebService, Java, Surface.Env, Surface.FS, Surface.Secrets, Surface.Validation, UI, Zastava Observer, Zastava Webhook, Zastava Core, and Plugin Platform.
- Each charter outlines the mission, scope, required reading, and working agreements for the respective guilds.
- Created task boards for Surface.Env, Surface.FS, Surface.Secrets, Surface.Validation, and Zastava components to track progress and dependencies.
- Ensured all documents emphasize determinism, offline readiness, security, and integration with shared Surface libraries.

src/Scanner/__Libraries/StellaOps.Scanner.Surface.Validation/TASKS.md

@@ -0,0 +1,9 @@
+# Surface.Validation Task Board (Epic: SURFACE-SHARING)
+
+| ID | Status | Owner(s) | Depends on | Description | Exit Criteria |
+|----|--------|----------|------------|-------------|---------------|
+| SURFACE-VAL-01 | TODO | Scanner Guild, Security Guild | SURFACE-FS-01, SURFACE-ENV-01 | Define validation framework (design doc `surface-validation.md`) covering SOLID extension points and queryable checks for env/cache/secrets. | Spec merged; architecture sign-off from Scanner + Security; checklist of baseline validators established. |
+| SURFACE-VAL-02 | TODO | Scanner Guild | SURFACE-VAL-01, SURFACE-ENV-02, SURFACE-FS-02 | Implement base validation library (interfaces, check registry, default validators for env/cached manifests, secret refs) with unit tests. | Library published; validation registry supports DI; tests cover success/failure; XML docs added. |
+| SURFACE-VAL-03 | TODO | Scanner Guild, Analyzer Guild | SURFACE-VAL-02 | Integrate validation pipeline into Scanner analyzers (Lang, EntryTrace, etc.) to ensure consistent checks before processing. | Analyzers call validation hooks; integration tests updated; performance baseline measured. |
+| SURFACE-VAL-04 | TODO | Scanner Guild, Zastava Guild | SURFACE-VAL-02 | Expose validation helpers to Zastava and other runtime consumers (Observer/Webhook) for preflight checks. | Zastava uses shared validators; admission tests include validation failure scenarios. |
+| SURFACE-VAL-05 | TODO | Docs Guild | SURFACE-VAL-02 | Document validation extensibility, registration, and customization in scanner-engine guide and developer docs. | Docs merged; examples show adding custom validator; cross-links added. |