Rules whose condition led with a PCRE-style inline flag group (e.g.
`(?i)`) never registered: `new RegExp("(?i)...")` throws in Bun/JS, so
the condition failed to compile and `TtsrManager.addRule` dropped the
rule as having zero usable conditions.
- Add `compileRuleCondition` in capability/rule.ts translating a leading
`(?i)`/`(?m)`/`(?s)` group into native RegExp flags; wire it into the
TtsrManager and both ttsr-cli compile sites.
- Strip surrounding quotes from scope tokens so a malformed
`scope: "text","thinking"` recovers to canonical `text`/`thinking`.
- Reparse each value in parseFrontmatter's YAML fallback so one bad line
can't leave sibling values wrapped in literal quotes.
Fixes#4796
- Added preprocessing to quote ambiguous plain scalars containing a colon-space sequence when standard YAML parsing fails.
- Preserves the parsed types of unaffected fields and prevents fallback warnings for common unquoted description strings.
- Added tests to verify successful recovery of unquoted values and continued fallback warning coverage for unrecoverable syntax.
roboomp