feat: Swift SDK update for version 19.1.0

[ChiragAgg5k]

This PR contains updates to the Swift SDK for version 19.1.0.

What's Changed

• Added: createSesProvider and updateSesProvider to messaging
• Added: updateOAuth2Server to project for OAuth2 server settings
• Added: updatePasswordStrengthPolicy and PolicyPasswordStrength to project
• Added: getAuditsDB health check to health
• Added: password-strength to ProjectPolicyId
• Added: apps.read and apps.write to ProjectKeyScopes

[greptile-apps]

Greptile Summary

This PR updates the Swift SDK to version 19.1.0, adding new API features and fixing a header injection issue in the client. The core architectural change moves X-Appwrite-Project from a global header (set once via addHeader in setProject()) to a per-request header injected explicitly in every service method's apiHeaders dictionary.

• New APIs: Messaging.createSesProvider / updateSesProvider, Project.updateOAuth2Server, Project.updatePasswordStrengthPolicy, Health.getAuditsDB; new PolicyPasswordStrength model; apps.read, apps.write scopes; password-strength policy ID; 9 OAuth2 server fields on the Project model.
• Client fix: parametersToQueryString now checks whether the path already contains a ? before appending query parameters, preventing malformed URLs like /path?foo=1?bar=2.
• Docs: update-password.md placeholder updated; 4 new example files added.

Confidence Score: 4/5

Safe to merge; the header refactoring is broad but consistent across all service files, and the URL fix is clearly correct.

The main architectural change — moving X-Appwrite-Project out of setProject()'s global addHeader and into each service call's explicit headers — is correctly applied across every service method in the diff. Other credential setters (setKey, setJWT, setLocale, setSession) still use addHeader, leaving a small inconsistency in the client API surface that is worth being aware of but does not affect runtime correctness.

Sources/Appwrite/Client.swift deserves a second look due to the project-header architecture change.

Important Files Changed

Filename	Overview
Sources/Appwrite/Client.swift	Version bumped to 19.1.0; X-Appwrite-Project removed from setProject() global addHeader and now injected per-call in each service; URL query-string fix to avoid double-? when path already contains query params
Sources/AppwriteModels/Project.swift	Added 9 new OAuth2 server fields; region moved earlier in struct; billingLimits pre-existing forced-cast in from(map:) unchanged
Sources/AppwriteModels/PolicyPasswordStrength.swift	New model for password-strength policy with id, min, uppercase, lowercase, number, symbols fields; follows same pattern as other policy models
Sources/Appwrite/Services/Messaging.swift	Added createSesProvider and updateSesProvider methods; X-Appwrite-Project header added to all existing method calls
Sources/Appwrite/Services/Project.swift	Added updateOAuth2Server and updatePasswordStrengthPolicy methods; password-strength case added to policy dispatch; X-Appwrite-Project header added to all calls
Sources/Appwrite/Services/Health.swift	Added getAuditsDB() method returning HealthStatusList; follows same pattern as existing health check methods
Sources/AppwriteEnums/ProjectKeyScopes.swift	Added apps.read and apps.write enum cases before usageRead, consistent with existing naming convention
Sources/AppwriteEnums/ProjectPolicyId.swift	Added passwordStrength case between passwordHistory and passwordPersonalData

_{Reviews (1): Last reviewed commit: "chore: update Swift SDK to 19.1.0" | Re-trigger Greptile}

[greptile-apps]

Inconsistency between setProject and other credential setters

setKey, setJWT, setLocale, and setSession still call addHeader to inject their values as global headers on every request, but setProject no longer does — it only stores the value in config. The project ID is now injected per-call at the service layer. Any caller that uses client.call(...) directly (bypassing the service classes), or any future service method that forgets to include "X-Appwrite-Project", will silently omit the header.