Add .env.example

Signed-off-by: Thomas Scott <tombomb122@noreply.localhost>

.env.example

@@ -0,0 +1,99 @@
+# ======================================================
+# SERVER CONFIGURATION
+# ======================================================
+
+# Port for the sync server to listen on
+PORT=3002
+
+# ======================================================
+# REDMINE CONFIGURATION
+# ======================================================
+
+# Base URL of your Redmine instance (no trailing slash)
+REDMINE_API_URL=https://redmine.example.com
+
+# Redmine API key (found in My Account → API access key)
+REDMINE_API_KEY=your_redmine_api_key_here
+
+# Request timeout in milliseconds
+REDMINE_TIMEOUT=30000
+
+# ======================================================
+# GITEA CONFIGURATION
+# ======================================================
+
+# Base URL of your Gitea instance (no trailing slash)
+GITEA_API_URL=https://gitea.example.com
+
+# Gitea personal access token (Settings → Applications → Generate New Token)
+# Required scopes: repo, write:issue, write:repository
+GITEA_TOKEN=your_gitea_token_here
+
+# Gitea username or organization that owns the repositories
+GITEA_OWNER=your_username
+
+# Request timeout in milliseconds
+GITEA_TIMEOUT=30000
+
+# ======================================================
+# CACHE CONFIGURATION
+# ======================================================
+
+# Cache time-to-live in milliseconds (default: 30000 = 30 seconds)
+# This prevents sync loops. Increase if experiencing issues.
+CACHE_TTL=30000
+
+# ======================================================
+# SYNC FEATURE FLAGS
+# ======================================================
+
+# Enable/disable label synchronization
+# Labels are created from Redmine trackers, priorities, and categories
+SYNC_LABELS=true
+
+# Enable/disable milestone synchronization
+# Redmine versions are synced as Gitea milestones
+SYNC_MILESTONES=true
+
+# Enable/disable attachment synchronization (future feature)
+SYNC_ATTACHMENTS=false
+
+# Enable/disable custom field inclusion in descriptions
+# Redmine custom fields will be appended to Gitea issue descriptions
+SYNC_CUSTOM_FIELDS=true
+
+# ======================================================
+# RETRY CONFIGURATION
+# ======================================================
+
+# Number of retry attempts for failed API requests
+RETRY_ATTEMPTS=3
+
+# Initial retry delay in milliseconds (uses exponential backoff)
+RETRY_DELAY=1000
+
+# ======================================================
+# LOGGING CONFIGURATION
+# ======================================================
+
+# Log level: debug, info, warn, error
+LOG_LEVEL=info
+
+# Enable verbose logging (includes stack traces)
+LOG_VERBOSE=false
+
+# ======================================================
+# PROJECT MAPPING
+# ======================================================
+
+# JSON object mapping Gitea repository names to Redmine project identifiers
+# Format: {"GiteaRepoName":"redmine-project-id","AnotherRepo":"another-project"}
+# 
+# Example:
+# PROJECT_MAPPING={"AI_Smuggling":"ai-smuggling","WebApp":"web-application"}
+#
+# If not specified, automatic conversion is used:
+# - Underscores → hyphens
+# - Uppercase → lowercase
+# - Special characters removed
+PROJECT_MAPPING={}