feat(workflows): expand template library from 9 to 22 + multiline string cleanup (#36)

* feat(workflows): add 13 workflow templates across engineering, business, and productivity

Engineering:
- bug-triage: reproduce path → root cause → fix plan
- api-design: resource model → endpoints → OpenAPI spec
- incident-postmortem: timeline → RCA → full postmortem report
- test-generation: code analysis → edge cases → full test suite
- refactor-plan: smell analysis → prioritised opportunities → migration plan

Business:
- competitor-analysis: profiles → SWOT → strategy report
- product-spec: problem definition → user stories → full PRD
- market-research: landscape → segments → research report

Productivity/Thinking:
- meeting-summary: raw notes → structured summary → follow-up email
- decision-matrix: criteria → weighted scoring → recommendation memo
- learning-plan: gap analysis → roadmap → week-1 day-by-day plan
- job-application: job analysis → tailored resume → cover letter → interview prep
- blog-post: research → outline → draft → SEO optimisation

Closes #1912 on librefang/librefang

* fix(workflows): overhaul existing 9 templates

- data-pipeline: redesigned — original 'extract from URL' step was
  broken (LLMs cannot fetch URLs); replaced with paste-data approach
  (profile → clean_transform → analyse) with analysis_goal parameter
- translate-polish: added target_language and register parameters;
  added back-translation step for accuracy verification
- weekly-report: added team/audience parameters, richer extraction
  step, added Metrics and Notes sections
- content-pipeline: added audience/tone parameters, added outline step
  between research and writing
- content-review: fix category 'content' → 'creation'
- customer-support: fix category 'support' → 'business'

* style(workflows): convert all prompt_template strings to TOML multiline syntax

Replace \n escape sequences with real newlines using triple-quote
multiline strings ("""...""") across all 22 workflow templates.
No content changes — formatting only.

* style(hands): replace \n escape in reddit writer format example with multiline code block

workflows/decision-matrix.toml

@@ -0,0 +1,76 @@
+id = "decision-matrix"
+name = "Decision Matrix"
+description = "Evaluate competing options against weighted criteria to produce a clear, defensible recommendation."
+category = "thinking"
+tags = ["decision", "analysis", "strategy", "thinking"]
+
+[i18n.zh]
+name = "决策矩阵"
+description = "对竞争方案按加权标准进行评估，输出清晰、有据可查的推荐结论。"
+
+[[parameters]]
+name = "decision"
+description = "The decision to be made and its context"
+param_type = "string"
+required = true
+
+[[parameters]]
+name = "options"
+description = "The options or alternatives being considered"
+param_type = "string"
+required = true
+
+[[steps]]
+name = "criteria"
+prompt_template = """
+You are a decision analyst. For the decision below, define the evaluation criteria:
+1. List 5-8 criteria that matter most for this decision
+2. For each criterion: define what 'good' looks like (high score) and 'bad' looks like (low score)
+3. Assign weights (must sum to 100%) based on business importance
+4. Note which criteria are must-haves (disqualifiers if failed)
+
+Decision: {{decision}}
+Options: {{options}}
+"""
+
+[[steps]]
+name = "scoring"
+prompt_template = """
+Score each option against each criterion on a 1-10 scale. Justify every score with one sentence of evidence or reasoning. Then calculate weighted scores.
+
+Format as a table: Option | Criterion | Raw Score | Weight | Weighted Score.
+
+Add a totals row per option.
+
+Decision: {{decision}}
+Options: {{options}}
+
+Criteria and weights:
+{{criteria}}
+"""
+depends_on = ["criteria"]
+
+[[steps]]
+name = "recommendation"
+prompt_template = """
+Synthesise the analysis into a decision memo:
+
+## Recommendation
+Clear winner with one-sentence rationale.
+
+## Why Not the Others
+For each non-recommended option: the decisive weakness.
+
+## Key Risks of the Recommended Option
+Top 3 risks and mitigations.
+
+## Conditions That Would Change This Recommendation
+What new information would flip the decision.
+
+## Next Steps
+3 immediate actions to execute the decision.
+
+Scoring:
+{{scoring}}
+"""
+depends_on = ["scoring"]